Do you really not know? It's a difficult question to answer in an HN thread, because on one hand, it requires a review of the history of empire and war profiteering. But on the other hand, it's just obvious to the point of being difficult to even articulate.
It's not unreasonable to take such a position, yes.
Look, if you believe that:
a) humanity is headed toward sustained peace
b) a transition from the current world order to a peaceful one is better done in an orderly and adult fashion
...then yes, at some point we all need to back away from participation in the legacy systems, right down to the drywall.
My observation, especially of the younger generations, is that belief in such a future is more common than it has ever been, and it's certainly one I hold.
Actions within that system may be unethical: certainly nobody is defending what America did to Cambodia, or countless other war crimes. But you're painting participation in the system as unethical. Therefore, Ukrainians defending their homeland are unethical.
Let me reframe what you said in terms of christianity:
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If you believe that:
a) Jesus is our savior
b) The salvation of humanity depends on accepting (a)
...then yes, at some point everyone needs to back away from other religious systems, right down to atheism.
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I'm not trying to make light of what you believe, but framing others' participation in a system you don't believe in as unethical is exactly what leads to oppression of religious minorities and other outsider groups. It's a tactic of religion, not reason.
If you live in US, taxes you pay directly fund DoD. So if you sponsor their activities, why can't Anthropic do business with them? Which other company would you rather get their (your) money?
Yes of course on some level, people who pay taxes to violent imperial actors are doing a disservice to humanity, and are in some sort of moral quandary.
We all wish that everyone who has ever lived in such a situation has had the bravery to resist. Right?
But I don't think that makes forbearance of such resistance equivalent to taking money from that same actor in exchange for expanding its capability. Those are related but distinct types of transaction.
This might makes sense if you believe US is an evil empire, DoD is doing bad things, and AI will help DoD do even worse things. But it's not so black and white, is it?
For large swaths of the population it is not. Moving is expensive, for one. Obtaining a citizenship elsewhere is non-trivial (and often also expensive). There are non-monetary costs as well, like having to leave your friends and extended family behind.
Taxes don't directly pay for military spending. If tax revenue, for whatever reason, dropped off a cliff, they'd continue giving money to the DoD, and just increase debt / money printing to cover the difference.
If there's not enough money from taxes, they will borrow/print more to cover total deficit (not specific to DoD). Otherwise, tax money will go directly to DoD.
Genuine question, and with due regard to some of the valid concerns you have: what would your opinion on this have been in 1940-1945? What about the Cold War?