Why the hell would you someone go and protest this group? That is beyond insane. Outnumbered and surrounded, where is the common sense? Personally I'd avoid any large congregation with a police presence. Protesting is a right but only if done so peacefully. Large crowd gatherings usually mean trouble because of very limited space, no easy outs if you have to bail, and good chance of stampeding.
Now a car rammed into people, multiple injuries.