Umm...how would I deal with what?

Do you mean what would I do about people calling themselves Nazis and forming groups and parading, for example?

Nothing...except to provide a police presence to avert a riot. To be a Nazi in present society is about as marginal a position as you can take, short of calling yourself a Satanist or practicing public nudity on the street. The Nazis were utterly defeated in 1945...the biggest and most total defeat of a party and government that I can think of in modern times. People who try to resuscitate Naziism now have got to be among the most unrealistic and pathetic losers one could possibly imagine.

The kind of people who join neo-Nazi groups are usually tremendously lonely, isolated, paranoid individuals with a persecution complex and a sense of being rejected by most people. They act out their alienation by being drawn to others they perceive as being "outcasts" like themselves, and they find what seems like acceptance there. This usually happens in the teenage years. Such people also join various gangs, motorcycle gangs, drug gangs, skinheads, anything that is way off the beaten track and suggests "fellow rebel and outcast" to them. That is just a sad situation.

Now...here's what I would do: If those people break any civil law, THEN I bring the power of the law down on them exactly the same as I would on anybody else. If not, I leave them alone. They can believe what they want, but I do not allow them to break the law or hurt other people.

Simple.

You cannot declare another human a "non-human" in your mind just because he has decided to call himself a Nazi, anymore than you can do so because he has decided to call himself a Jew, a Republican, a Parsee, a Communist, a Muslim, a Christian, an atheist or anything else.

Have I answered your question adequately...or did you have something else in mind?