What are you on about? It's not a contest, and one doesn't  make the other any better or worse. Communists aren't infiltrating the US Government or likely to take power in France, Austria, etc ... If we start to have a problem with Marxists, then we'll talk. In the mean time, the problem we actually have is with a resurgence in the movement that gave us the Holocaust. So let's deal with reality, shall we?

And if by violence you mean using the power of the state, as expressed by the duly elected representatives of the people, to pass laws to use the powers of law enforcement (which can no doubt be violent) to criminalize National Socialism and arrest, try, and convict and imprison Nazis, then yup, I am advocating violence. 

You know, like our grandfathers and great-grandathers did at Nuremberg.