Until we actually have controls to protect against excessive force, which we patently do not and have never had, building better weapons will always be used against civilians to commit attrocities.

Right now, we ignore the controls we do have. The US is not supposed to provide weapons to anyone violating human rights, which Israel is very obviously doing, as is agreed universally outside the US. But we still provide them with weapons as they are our "allies". While this is the case, de facto any better weapons we build are used to commit "better" crimes against humanity.

We can clearly see from how the US aids and abets genocide[0] in Gaza that they make no judgments based on international law, ethics or sound moral values but only based on the geopolitical interests of their ruling elite and their lobbyists regardless of what the majority of the population they rule over thinks in this regard. If you believe for a second that America is helping Ukraine out of the goodness of their hearts or because "it's the right thing to do" then I have a bridge to sell you. It's a proxy war for them and the US would let happen to Ukraine and Ukrainians that which it lets happen to Gaza and Gazans if it were aligned with their geopolitical interests. US politics couldn't be possibly more machiavellian than it already is.

[0] https://www.jewishvoiceforlabour.org.uk/article/prof-amos-go...