mojo84 wrote:If they don't break the law then there is no problem. I don't agree with the tactic but I also don't see a need to hassle them if they don't break the law.
In theory you are correct, but when tensions are high sometimes crowds can get out of hand; the police can react or over-react; the crowd can react or over-react, escalating into a confrontation. These situations can turn bad, very quickly. When it's all over sometimes you can't even figure out how, what and why it happened. But after it's all over we all know who is going to jail and who is going home.
Something we talk about regularly on the forum is to avoid getting into potentially bad situations. Avoiding this situation is easy - if I witness any of this protest it will be on TV.