[yetanotherphd]

>would have deserved what you get

What do you imagine this would have been? What would a "fair" reaction of the protestors have been?

The poster wasn't 'using' the protests, they were using a public park. It is hypocrisy of this movement to take over a public space and claim it for their own exclusive use, while not acknowledging that the fact that the police let them get away with this is a sign of their own privilege.