askchapo

To answer your question more seriously, a lot of these people are part of the "compatible left" or "captured left" people who claim to be left wing, but ultimately do not support any real socialist causes and do not do anything significant to oppose capital.

They are more noticable in the west because they are often allowed to exist where successful left wing orgs would be suppressed, so people looking to join an org will end up joining these do-nothing "weekend socialist" types. The actual leftist tendency is irrelevant, they are all the same, a group of people who claim to have the One True Correct Path of Leftism and spend all their time and energy attacking other leftists for disagreeing with them rather than actually doing anything to oppose capital.

They are functionally a way for the governments of the west to funnel revolutionary energy into impotency that is no longer a threat to capital. Trotskyism and Maoism are just two of the more common masks they use to disguise their true function, because those are ways to enable people to keep their liberal brainworms about AES being "bad" while also feeling like they are opposing capitalism, which is why you don't really see orgs like this being more traditional Marxist Leninists, because that also means they would approve of Stalin and the USSR (and possibly all other AES as well) and would make for bad controlled opposition that way.