To condemn some (the U.S.) for pursuing [neo]imperialist plans and being hypocrites and, at the same time, condemn others (Russia and China) for being dictators and violators of human rights is a Solomonic attitude that does not address the problem that the world faces today and, in the face of which, the revolutionary left must take sides.
The U.S. and its allies are (always) on the offensive to constrain, undermine and, if possible, break up (politically and territorially) Russia and China. And the latter respond as they can to defend themselves from this siege. The former attack; the latter defend themselves from aggression.
Without making this distinction, nothing becomes clear; and the revolutionary left is unable to play a role in events, bypassing reality.