Nazis don't have ideas. They will jump from truth to lies as it suits them to win an argument. They do not live in the world of civil debate. Think of them as trolls from before trolls were a thing. They are not an ideology, they are a hate movement. Silencing them does not make their hate grow, they are already fundamentally about hate. They are a passion, not an ideology. Tell me what is the tax policy of a fascist? They have none, save that of whichever system they hijack en route to their only real mission, which is the elimination and persecution of their perceived enemies. We fought the worst war the world has ever seen to stop them because once they got rolling, they had to keep growing to survive. That's the nature of hate. They certainly weren't going to be stopped by debate.

From Sartre: "The anti-Semite has chosen hate because hate is a faith; at the outset he has chosen to devaluate words and reasons. How entirely at ease he feels as a result. How futile and frivolous discussions about the rights of the Jew appear to him. He has pleased himself on other ground from the beginning. If out of courtesy he consents for a moment to defend his point of view, he lends himself but does not give himself. He tries simply to project his intuitive certainty onto the plane of discourse. Never believe that anti-Semites are completely unaware of the absurdity of their replies. They know that their remarks are frivolous, open to challenge. But they are amusing themselves, for it is their adversary who is obliged to use words responsibly, since he believes in words. The anti-Semites have the right to play. They even like to play with discourse for, by giving ridiculous reasons, they discredit the seriousness of their interlocutors. They delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert. If you press them too closely, they will abruptly fall silent, loftily indicating by some phrase that the time for argument is past. It is not that they are afraid of being convinced. They fear only to appear ridiculous or to prejudice by their embarrassment their hope of winning over some third person to their side."

It seems that America is going to insist on finding out what fascism is really about the hard way.

First, it's not illegal - although it does raise interesting questions of where public space ends and private property begins.

If we resolve to silencing and violence without debate how are we better? Have you talked to any Nazi? Are you sure they know history and what Nazi stands for? etc etc etc I personally haven't met one ever but when I do I won't punch them with a fist but punch them with debate.

And what will you do if they respond by punching you with a fist? I have talked to a lot of nazis, and listened to them, and have been doing so a very long time. Individual people can abandon the nazi ideology; according to people in the deradicalization movement, the most likely triggers for doing so are the birth of a child (more so if a daughter), or receiving kindness/compassion from someone who is normally a target of theirs.

But the nazi ideology is explicitly predicated on the idea of violent struggle for dominance rather than peaceful cooperation, in contrast to most others. Those who adhere to that ideology and call for the subjugation of other races, genocide, or war are not engaged in debate; they are issuing threats.