Those groups that define themselves as Marxist Leninist are just as bad if not worse. The near entire western based MLs have sold out to their respective right wing nationalisms when it comes to Europe. In Europe nearly all the MLs support the uk nationalist project of brexit, many of the espouse clearly far right nonsense like that in Sweden where they campaign to deport immigrants, or in the case of Britain the 'cpgbml' have out done many MLs in their racism and nationalism by supporting the UK union at the Scottish referendum, brexit and even trump as a 'international victory over imperialism' I kid you not.
In the 'usa' the biggest micro groups who self define as ML are deep in bed with the far right fascists, for e.g. you can see leading members of the 'psl' being leading voices in the fascist platform 'Sputnik', and much of self defined MLs are deep in alliances with an array of far right and fascist and even neo-nazi forces and voices.
Western Trotskyist's have been a total irrelevancy since the 1940s but for their service to imperialism in campaigning against every single revolutionary movement anywhere. However, while the ussr and Mao's China was around the western Maoists and MLs had something useful to give, especially the African and Asian Maoists and MLs that include Paul Robeson, Claudia Jones, Harry Haywood, Manchanda and Amiri Baraka / Leroi Jones. Since the demise of Mao, USSR and these figures, and in the context of no clear and direct global socialist anti imperialist leadership, the westerners have descended back more or less into selling out to racism and imperialist nationalism.
Currently there remains no clear global socialist anti imperialist leadership, the closest we came to that in the recent past was Gaddafi's projects in Africa and to the Black and Brown communities in the west, and Chavez's messy political leadership that never really was very clear and distilled. This all being the case what remains and passes as Maoist and ML grouplets in the 'west' will continue to be confused and divided and divide further while they continue to collapse into a post modern type social media micro ghettoes that remind one of the wackiest 1960s squat / drug / sexual exploitation / promiscuity collectives: profoundly disconnected to actual oppressed communities, weird contrived workerism, obsessions with and open addictions and even promotion of porn and drugs and recruiting those who often lack basic social skills.
An English white comrade who I respect asked me recently if I was a communist. I replied that I believe in the end of all exploitation and oppression of man against humans and nature, and that means an end to classes and yes: I believe in a world without classes and exploitation. However, that struggle has to come through reality and actual peoples struggles and using revolutionary frameworks that do not exist at all in these self defined micro groups.
If Latin America in this last two decades until today has failed to give any leadership globally, its likely that we will perhaps not see a clear global leadership for a very very long time and perhaps never, but the contradictions of the imperialist system continue to push people towards fascism and indirectly and unintentionally towards resistance. Interesting things come out of all this, but not what's in the minds of the westernised far left fantasists.
This all being said: Mao and MLism are very important revolutionary theories for people to master in the struggle against the west as well as the many other ideologies and revolutionary legacies and histories. Mao's works are important frameworks especially for 'third world' revolutionary struggles, and MLism encompasses many aspect and areas of revolutionary organisation, strategy and a stinging and militant understanding and critique of capitalism, colonialism, imperialism and racism and imperialist nationalism.