I was at a political rally a long time ago. One of the speakers said "let's hang all the people in <rich suburb>". As I remember it no one spoke out against him but neither did people cheer. Anyway I realized the rally was a bit too much for me and left. The speech was entirely inconsequential - no violence resulted nor was anyone arrested.

I'm telling this story because I think it's how things usually go, and I think you are quite mistaken.