The Dangers of Physical Violence

I don't think people should be physically attacked for expressing views, even if I don't agree with them. It's concerning maybe that it seems like a large number of people think that it's okay to initiate physical violence against someone else. That seems bizarre to me. There's a guy in London who I see on the streets maybe like once a year who totally is a Nazi. And almost every single person on the street just like walks right by and pays no attention to him.