For me (and I would imagine a lot of people), it's far from a no-brainer.
While it would undoubtedly be interesting from a technical standpoint, there is a serious moral conundrum - even if it was an ideal world where you trusted your government not to start wars based on flimsy or falsified evidence, start wars for profit, or sell weapons to less scrupulous governments.
That’s fine. I am expressing my opinion and you yours. I don’t trust my government with everything, but I’d much rather keep the status quo than see China or another country reign in my lifetime.
The world isn't binary; I don't think the options you laid out are the only possibilities.
I take your point though, and I'd have much less of a dilemma if the missiles in question were not to be sold to other governments, and only to be used for domestic defence or a clear world-threat type scenario. Which for many Western countries is of course not going to happen.
While it would undoubtedly be interesting from a technical standpoint, there is a serious moral conundrum - even if it was an ideal world where you trusted your government not to start wars based on flimsy or falsified evidence, start wars for profit, or sell weapons to less scrupulous governments.