Two statments you made are without question false (the rest of it was false too, but I suppose you can quibble)
“Both sides were equally wrong in this case. ”
One side drove a car into a crowd of the other and killed someone. They are not equaly wrong. Yes beating is bad, MAce is bad pepper spray is bad but murder is worse.
“The fact that one side were Nazis is not really relevant–it would be just as bad if one side were Yankee fans and one side were Red Sox fans.”
IT is relevent. IF we were dealing with Yankee and Red Sox fans then saying that both sides had some “nice guys” would be true. and we can point out that while it got out of hand and both sides had soem bad people both also had good people.
When one side is Nazis, there is no such thing as a “nice Neo-Nazi”