When you come across something you are unhappy with, take action to thwart/mitigate/undo it. Don't be fearful of it, fear is not a productive emotion.

Fear is a strong means of control. Why do think demonstrators are being assaulted? Their is certainly an element of trying to induce fear in others of stepping out of and drawing attention to the status quo.

Why is fear not a sensible response?

Demonstrators are being assaulted, I don't want to be assaulted, therefore I should not demonstrate.

Fear seems like a productive emotion to me. Fear is what keeps you safe.

Well, that, and a pervasive constellation of minor infractions.