You can absolute support Russia’s anti-imperialist goals while rejecting all their other reactionary views. The same can be said for support for the anti-imperialist causes of the Palestinians, Iranians, Lebanese, Algerians etc. You don’t have to like them, you just need to acknowledge that this is a historical process that is inevitable.

Many left-wingers (most especially Trots, I find) think the question is: "Should we support a multipolar world? In fact, is the coming world going to be multipolar or just Russian/Chinese imperialism replacing American imperialism? Should we support Russia in Ukraine and/or China against Taiwan?"

But these are all pointless questions. What does it matter if you support Russia/China or oppose them? It's akin to spending your time debating "Is the hurricane coming inland good or bad?" instead of saying "Fuck, okay, there's a hurricane coming inland. What should our individual responses be? Should we start prepping? Get involved in local politics to better withstand it?" and even "How did this hurricane come about? How will existing infrastructure be affected? It's been looking pretty rickety even before the winds started up..."

I try to imagine that I'm looking back on the events of today from 100 years in the future. Doing so makes all questions of justification much less interesting than the question of "Where does this lead, and how is it fought?" It also explicitly imagines that there is a future, which is something that many people (quite reasonably) struggle with as climate change and massive wars continue to engulf us, which helps give perspective; just because things are a certain way now, doesn't mean that they'll be this way in 5, 10, 20, 50 years from now. It's almost impossible to have predicted the world of 2024 from the position of somebody in 1924 or even 1974, in the multitude of ways that it has changed.