I think it was Xi who personally said the digital space was an important ideological battleground of the 21st century. Posting is praxis people.

Foreign policy is not democratized. The range of acceptable discourse inside imperialist countries never spans past the point where you turn around and actually oppose imperialism, the opposition actually lands so far away that any speech against empire is thoroughly delegitimized and often holds negative power to change the reality of imperialism, because by holding that position you become the boogeyman for the moderates to rally against. Not that we shouldn't be anti-imperialists, but thinking that you will just change reality by having the correct ideas, with no concrete plan as to how you'll enact those ideas into material reality is ahistorical and antimaterialist. Note that when it comes to organizing in favor of Palestine the situation is entirely different because we do have things we can do to improve the situation for Palestinians, but the same can't be said for Russia and Ukraine, or anything related to China. The only thing you have to offer is discourse, which the ruling class has the power to invert in their favor. No amount of 500 follower hammer and sickle accounts on Twitter dunking on White House press releases is going to stop aid to Ukraine, you're probably getting Twitter to get even more reactionary if anything.

So that ties back into my point, we have no organization broad enough or strong enough to actually change reality w.r.t. foreign policy, especially towards the main enemies of empire. We're just a part of the culture, part of the superstructure that maintains the base but has little power to materially change it until we can have enough workers willing to withhold their labor politically conscious and organized. Once we're at that point then those questions do become important and we have a broader international left to fit into.