Earlier quoted context omitted.
Racism and hate speech are not indications of future violence. You can go to any internet space and find thousands of hateful and racist people. The chances of any of them committing violence is extremely low.
Right wing extremists are responsible for more terrorist attacks on US soil than any other group.
These terrorist acts, while pertinent to the current conversation, are not the same. We've (hopefully) moved on from the violence of our forebears, and the rise of white nationalism should be treated as a new occurrence. I hope it is one. The argument that it
The police should be on hand at these 'demonstrations'. Many of them are actually violent. Many more have peaceful if disgusting protestors, and a few truly vile people that will incite incidents - And these get out of hand very quick. Police should be quick to stamp out these brawls. They need to immediately arrest the criminals who instigate violent acts.
The important things to recognize are a) that the violence is instigated on both sides, and b) making yourself a target for violence is not an effective way of rooting out violence. They're correlated - Black Block members often toe the line in attempt to provoke. That's simply escalation. It make the Nazis think they're right and makes it easier for them to radicalize others - Because they're "being provoked", so why shouldn't they "fight back"?
Escalation only makes it worse. As the old adage goes - "Don't wrestle with pigs; You both get dirty and the pig likes it". Antifa is wrestling with pigs. You can't fight Nazi's by fighting them with fists - They like that. You need to fight them by being better than them, and quite frankly, when they're winning you need to re-evaluate if you really are.