Yep, always those few rabble rouser using any excuse to loot or burn,or "stick it to the man"....You don't expect correct grammar from a poster like that.
Exercise: Define 'Libturd' and describe how you recognise one of the street...
PS: Many of the demonstrations in the UK that turn violent only become violent because there is a small core of violent protesters who do not care about the issue, just about confronting the police. They have no political views, just violence. They damage any cause they 'join'.