Your comment relies on three basic assumptions. The first is that the US will intervene militarily to defend Israel. The second is that a military threat to Israel (ex: a blockade) would need military collaboration from Sunni Arab states. The third is that the Sunni Arab states that have relation with Israel do it from direct self-interest.
None of those are truths you can rely on right now, let alone for 1-2 generations.
It's doubtful that the US, should Israel really fly off the handle, would be willing to intervene against a nuclear state - it hasn't in Ukraine despite much more favourable circumstances. As time goes on and the balance of power shifts away from the US this will become more and more true. Additionally, the US cannot militarily stop antiship missiles even at a relatively small scale, so the only intervention that would be guaranteed to work would be an invasion of Iran, which if it had nuclear weapons would probably not be undertaken.
Secondly, there is no need for cooperation from any Sunni Arab state. In theory, all it would take would be missile launches from Iraq, Syria or Lebanon to shut down traffic to Israel from the Mediterranean - that would be enough to basically collapse the Israeli economy, as it would not be economical to ship overland from Egypt or Jordan, even if those countries would be willing to collaborate (and they might not).
Thirdly, no Arab country has diplomatic or economic ties to Israel out of the goodness of their heart. They only do due to massive pressure from the US, who either gives diplomatic concessions in exchange (ex: recognition of Western Sahara) or hangs the military umbrella (Saudi Arabia, UAE). This is not something you can bank on when shit hits the fan, let alone for the next 1-2 generations.
At the end of the day Israel's strategic situation is extremely precarious and is completely dependent on foreign powers who not only have greatly waning influence and relative capability, but also declining sympathy. This used to also be true, to some extent, for it's neighbors, but it isn't anymore because Iran managed to make its own sanction-proof and relatively competitive MIC. In the future, Iran might not even be the only state in the region to manage such a thing, and structurally any state which aims to do this aims for strategic independence, and a state which is strategically independent doesn't have much of a reason to be sympathetic to Israel right now, let alone in the situation you presented. Additionally, it's not unlikely there will be nuclear proliferation in the Middle East, which will greatly weaken Western influence as Western nations will oppose proliferation and because states which attain nuclear weapons are no longer reliant on the US for defense.
The US _is_ intervening militarily to defend Israel, mainly in Iraq, Yemen and Syria (as well as nearby oceans). Moving those air strikes to iranian territory would in practice be easy, if the political conditions allow it, which Iran knows.
The US might not be able to stop anti-ship missiles, but that's not the strategy either. The strategy is to keep starving Yemen and showing off military equipment, reminding every nearby state, including Pakistan, how the US conducts diplomacy in hostile situations.
An existential threat to Israel needs to invade, which means military bases in a neighbouring area where the US doesn't already have thousands of soldiers and a lot of equipment. Nasrallah doesn't have the people or equipment needed, Iran wouldn't be allowed to use saudi or jordanian territory.
Sure, it's not about goodness, it's more about not having to arm their own populations and trade in blood commodities from Africa. It's also about the US and Israel being a relatively reliable enemy, that isn't going to perform surprise missile strikes on your territory for obscure reasons like Iran did a while ago. They'll do air strikes, but they'll also tell you why in advance. It might be a lie, but they'll look a bit mad rather than devious and mainly attack civilian or paramilitary targets.
Israel's strategic problem is the same now as it has been for almost a century. How to get away with ethnic cleansing, and if that doesn't work because no other country wants to participate, how to get away with genocide? US protection has been the answer for most of that time, and is likely to continue, with Europe using Ukraine as a domestically communicated reason to produce more weapons which will then be transfered mostly to Israel. I might be wrong and Iran more reckless than I expect, we'll see over the coming decade or so.
Airstrikes against a nuclear-armed state just isn't something that the US is willing to do right now, and it's something it will be less willing to do in the future.
Additionally, American airstrikes in Iraq, Syria and Yemen are ineffective, so I'm not sure why you mention them. In Syria it's only Turkey that's preventing Assad from a complete victory; Iraq's primary military force is an Iranian proxy, while Yemen is still hitting ships in the Red Sea.
There is no need to invade Israel to pose an existential threat. Israel is a tiny country with very little resources - should it be blockaded it would fall apart, even just for lack of energy.
Israel's strategic problem just isn't the same. For the first time ever, it has to deal with an adversary that is almost completely strategically independent and that it simply cannot defeat militarily.
There's nothing here that needs recklessness either - as it is right now we are at the stage of threats. That's part of what the Houthi missile strikes, it's Iran sending a message that it can threaten shipping in the region and that no one can actually stop them. If Iran wanted to actually hurt Israeli shipping, the missiles would be fired into the Mediterranean, not into the Red Sea. Just the fact that the Houthis are still hitting ships today is a momentous geopolitical shift - it's a Suez crisis lite edition.
If all you're looking forward is a decade, then it's probably true that there isn't going to be something huge. But if you're talking about 1-2 generations, there are clear strategic trends that threaten Israel's current strategy of relying on the US for protection and pressure. The idea that the US can no longer ensure maritime safety in any major trade route, let alone in the ME, or that there is a nuclear threshold state with a missile industry advanced enough to export to Russia in the ME is something that would get you laughed out of the room just 15 years ago.
What do you mean, "ineffective"? They kill civilians, or paramilitary leaders in civilian areas, to remind everyone in the region that their civilians are on the line if they transgress too heavily against US policy.
What do you mean by Assad "complete victory"? Syria is devastated, something like ten million people are food insecure, the country is occupied by both other countries and militias.
What do you mean by "proxy"? Does your definition imply that the ukrainian army is a "proxy"?
What do you mean by "Houthi missile strikes"? It's the de facto government of Yemen engaged in a blockade against Israel, which is composed by more groups than the Ansar Allah. It is also quite popular due to its position against the genocidal colonial governments of the US, UK, Israel and so on.
Edit: I now realise that "and so on" could be interpreted to include the UAE which is occupying part of Yemen together with Israel, which is not the case. At the moment Yemen is not directly engaged against the UAE, presumably because its leadership considers a future arab peace more important and the US-israeli influence a driving factor in the UAE transgressing against Yemen.
None of those are truths you can rely on right now, let alone for 1-2 generations.
It's doubtful that the US, should Israel really fly off the handle, would be willing to intervene against a nuclear state - it hasn't in Ukraine despite much more favourable circumstances. As time goes on and the balance of power shifts away from the US this will become more and more true. Additionally, the US cannot militarily stop antiship missiles even at a relatively small scale, so the only intervention that would be guaranteed to work would be an invasion of Iran, which if it had nuclear weapons would probably not be undertaken.
Secondly, there is no need for cooperation from any Sunni Arab state. In theory, all it would take would be missile launches from Iraq, Syria or Lebanon to shut down traffic to Israel from the Mediterranean - that would be enough to basically collapse the Israeli economy, as it would not be economical to ship overland from Egypt or Jordan, even if those countries would be willing to collaborate (and they might not).
Thirdly, no Arab country has diplomatic or economic ties to Israel out of the goodness of their heart. They only do due to massive pressure from the US, who either gives diplomatic concessions in exchange (ex: recognition of Western Sahara) or hangs the military umbrella (Saudi Arabia, UAE). This is not something you can bank on when shit hits the fan, let alone for the next 1-2 generations.
At the end of the day Israel's strategic situation is extremely precarious and is completely dependent on foreign powers who not only have greatly waning influence and relative capability, but also declining sympathy. This used to also be true, to some extent, for it's neighbors, but it isn't anymore because Iran managed to make its own sanction-proof and relatively competitive MIC. In the future, Iran might not even be the only state in the region to manage such a thing, and structurally any state which aims to do this aims for strategic independence, and a state which is strategically independent doesn't have much of a reason to be sympathetic to Israel right now, let alone in the situation you presented. Additionally, it's not unlikely there will be nuclear proliferation in the Middle East, which will greatly weaken Western influence as Western nations will oppose proliferation and because states which attain nuclear weapons are no longer reliant on the US for defense.