EZLN, the favorite example of Anarchists and revisionists of an alternative to Marxism-Leninism, has now collapsed due to lack of solid theoretical fundamentals.
Marxism-Leninism is the consistent science of the liberation of the working masses, and no viable alternatives have been seen to date.
Anarchism always evolves into MLism or decays into Fascism, so I'm glad (and not at all surprised) that they're transitioning into the former.