protesters damaging public property (for any cause).
I just went through pictures of the university that I did my undergraduate at, and it looks like a complete mess right now. bricks pulled out from the streets / pathways, bricks and furniture piled near lecture hall exits, etc.
people just don't understand that reckless activities like these don't help anyone.
honestly, as someone that grew up in a developing country, I expect this sort of stupidity at home. not in a European country with the third most educated population in the world.