Eventually they are going to be violent to the wrong person. Or I should say the right person. Look at the increase in firearm sales and concealed carry permits. Who incidentally are statistically the most law abiding people in society.
According to meme's on facebook this stuff was going on after Obama was elected. I don't remember riots and destroying properties like they are now.
Its usually the left that destroys private property in these kinds of riots that they claim are peaceful protests. Same thing happens when the various G# economic meetings come to a city
Vote for freedom, not political parties.
Politicians need to cut spending