Does this mean you favor outlawing certain groups who bring hate and violence to protests?
Many of the BLM protests that started peacefully were turned into violent riots by the Anarchist and ANTIFA groups. Same thing with the campus rallies. 
If you outlaw one you have to outlaw all of them. 
Who gets to decide which groups get outlawed ? Doesn't that feed into what the Nazi's, KKK and groups like them want to do to others ?
As horrible and terrible as they are, taking away their right to speak, to protest, and to assemble is exactly what they would like to do.
There has to be a better way then giving up our rights because of a bunch of Nazi's and KKK. Sue them like Morris Dees did and that shut them up.