The majority in the rioting mobs don't have a clue what they really stand for. They might be able to articulate, haltingly, what they are against - which is whatever the loudest mouth in the mob has told them they're fighting - but if you ask them what they really stand for the answer is generally some incoherent rabble of buzzwords.

They are like Lenin's 'useful idiots' [1], although the question is what use they serve to whom.

[1] https://en.wikipedia.org/wiki/Useful_idiot