I think in both of these cases, and in the case of the Cap Hill Autonomous Zone (No we mean Cap Hill Occupied Protest actually!) the shift in rhetoric is not so

I think in both of these cases, and in the case of the Cap Hill Autonomous Zone (No we mean Cap Hill Occupied Protest actually!) the shift in rhetoric is not so much from the new people joining, but from the movement getting a reality check and embarrassing itself, then scaling back its ambitions. Edit: The analogue on the right (but not as clean I guess) would be the attempt to reframe the Jan 6 protests after that utter "embarrassment." They wanted to overturn the election but now the right is spinning hard to reframe the rhetoric. Basically your radicals work hard building a groundswell and excitement around some idea, eventually embarrass themselves, and you have to do damage control. That's modern day national politics.