I saw it too and the clown crowd reminded me of antifa anarchists. One spark is all they needed to go all destructive and insane just like the antifa we are familiar with.
I guess the moral of the story is the antifa jokers are nothing more than crazy clowns on lots of street drugs.
:-D
I found it very very very interesting (and encouraging) that they were protesting with signs saying 'RESIST' and 'DOWN WITH FASCISM.' It was a very deliberate choice what those signs said (and certainly that's not what was being protested back during the time of the movie - or at least not in those terms.) Having the signs say that was the equivalent of Hollywood calling the lefties of then (and now) ... bad, looney, mentally ill.
It's of course CORRECT ... but very odd in a good way to see that come out of Lefty-Wood.