And yet for all that every successful revolution for the last century, from the overthrow of Moseley to the Storming of Washington, has had at its heart a committed vanguard, whether the Wintringham Circle or the Red League, both of which had members in the hundreds before the revolution. Your vision of a self lead revolution might seem pretty, but we saw its results in 1917, a splenetic self destructive force that ended with Kerensky and the Tsar in power and even stronger than before.
...Everything you say makes it clear that for someone who's so critical of left communism, you haven't even bothered to skim the wiki page, let alone reading any real theory. The vanguard is an essential part of any revolutionary effort, of course, however, that vanguard must be the most class conscious part of the proletariat, instead of cultists trying to impose a utopian view from the top down. As for your "revolutions", they're political revolutions, not social revolutions - a difference that Marx himself mocked.