If they had their attitude adjusted more often, maybe they would quit their protesting.
I don't have any "particular" problem with protestors in general . . . but when anarchists decide to break the law like the Greenpeace and PETA pukes do they cease to be protestors and turn into nothing but common criminals and society should treat them as common criminals.
When PETA punks break into LEGAL scientific laboratories and burn then down, they're nothing but arsonists.
When Greenpeace and tree-hugging assholes drive steel stakes into trees and a forestry worker is killed when his chainsaw strikes the stake, they become murderers.
When any protestor steps over the line to anarchy . . . and they subject human lives and property to injury or destruction . . . a broken-jaw is not only called for, it should be the least of their worries. We've left the LEFTIES of all persuasions run roughshod over us for long enough.