imperialism dwarfs any domestic concerns you have
if you disagree with this then youve got american leftist brainworms
people who have shitty or bizarre domestic policy opinions but are active anti-imperialists, not in the fake "no more intervention because brown people dont deserve my help" libertarian fasc way, but in the real "hey the us empire should end" way and actually take steps to disrupt that empire are more important and helpful to the world than people who have demsoc or even leftist domestic opinions but standard or null foreign policy (this includes AOC etc)
u can do both, but one of them is required to even be passably useful
https://en.wikipedia.org/wiki/Opposition_to_United_States_involvement_in_the_Vietnam_War
That has so many elements that don’t exist. A draft, a guerrilla army fighting back, a prosperous middle class, etc
I am not saying people should do a carbon copy of the anti-vietnam war movement, but is pretty clear evidence of people in the imperial core having an effect on foreign policy, even if it was a small one. As far as I am concerned, saving one kid from getting blown to bits is worth a lot of work.