No I do not condone violence.  I'm no expert but driving a car into a group is murder and in the context of flying a group of 200 Nazis flying a Nazi flag on USA's sovereign ground is close to looking like a threat to our country.  Free speech is free unless you're threatening a country or individuals?  The Nazis later revealed several of them were armed  -  to the teeth.  I thank those who stood up to defend the country given we do know Nazi is a threat to citizens of our country.