It's a tale as old as time of Anarchists absolutely shitting all over communists but god damn I hateeeee it. No self awareness
Edit: to be clear I don't have a problem with Anarchists, just seems like very often MLs are met with so much vitriol with people they could collaborate with. Just sucks. Stupid interner
It becomes evident during struggle what ones are the most advanced. You use results to determine this. The most advanced proletarian movements in history are the USSR and other AES. They achieved the most power. Once another plan and type of communism gets further than that, they will become the default