I know that anarchists and libs don’t have one.

But more seriously, I think you do find a sort of general mistrust in (Western) psychology among certain Marxists. It probably has to do with the perception that psychology tends to treat general societal problems solely on the individual level – e.g., the epidemic of suicide among American teenagers can’t possibly be rooted in the collapsing economy, and instead has everything to do with a young person’s relationship with their parents – and the undoubted fact that much institutional medicine in the west is in the pocket of the same pharmaceutical industry that got millions of working-class people addicted to opioids. Old Sigmund Freud and his deterministic views on women’s sexual development especially also tend to cast a long shadow.