Just a disclaimer for normal ppl:
What op is referring to as "Marxists" are (what the irl leftists call) revisionists who think that Marxism is somehow compatible with bourgeois counter revolution (PRC after Deng, under whom the crackdowns in Tiananmen happened btw) and "anti-american" imperialism (what Russia and modern-day China are doing militarily (mostly Russia) and financially (mostly China))