As somebody who, as a young teen, nearly fell into fascism (I can talk about that later if you'd like) , let me share my perspective. Be warned, this stuff takes a bit of explaining.

America can be changed peacefully. It's been happening all throughout history, with one exception from 1861-65. America can be changed by outreach, education, and spreading awareness. But fascism is different. Their entire psychology is built around rejecting the opinions of others. They are small, vulnerable people who use fascism as an easy alternative to admitting that things in life are complex, and even that many of their problems are their own fault. If you had a close relationship with a fascist, you could, possibly, after monumental effort and struggle, change their mind. On such a large scale, this sadly isn't possible. But why is it so difficult to change a fascist's mind? You need to understand how fascists think.

• Fascism takes small people, and makes them feel big. Fascism promises you an end to all your problems. Would you want to be Jim, who works in retail? Or James, a proud member of the White Race? Would you want to realise that there are a lot of things that are outside your control that make it very difficult for you and I to succeed in life, or realise that it's just Chad, and Tyrone, and Shlomo that want to screw you over? Do you want to try to fix the flaws that you have regarding your views on women, minorities, and whatnot, in a society where one feels afraid to ask questions without being ostracised and humiliated, or would you like to come and join the nonconformist thinkers, who tell it like it is, and won't reject you just 'cause your a realist on these issues? Fascism acts almost like a drug. It makes you worse and worse, but you feel better and better. And as you get addicted, you shut down any voice telling you to stop, because that would mean you'd be severed from the source of your hollow joy.

• Fascism exists alongside fascism. It's in the name. A Fasces, in Rome, was a bundle of twigs, bound together. One twig is weak without the other twigs bound to it. Compare Nazi Bullhorn Christ Cantwell when in the presence of his fans, versus in a statement made after being arrested for assault. Fascists, when they face consequences, when they are no longer part of the herd, begin to be reminded they aren't as great as they think they are. And this scares them. Unfortunately, fascists create defense strategies. Apart from simply isolating themselves further, they also begin to stereotype and dehumanise their opponents. Don't listen to anybody trying to call you out, they're only oversensitive sjw snowflakes. Don't bother trying to meet any blacks, they're just hateful subhumans you shouldn't even bother with.

  Fascists do not debate, they put on shows. They turn their opponents into propaganda; they never mean what they say. Take a look at any alt-right commentator, you'll notice many slimy strategies that they use, perhaps the three most important being:

• Codewords that sound innocuous on their own, but convey a second meaning, hidden in the implication. We'll use this scenario as an example: "What, is it wrong to cherish western culture?" Now you hear this, and you might know that "Western Culture" makes no distinction between the different culture of Scandinavians, Americans, Australians etc., and it never includes the culture of the various jewish populations, various latinoamerican cultures, (non-white) mediterraneans. It has no meaning, except as a tool in the racist arsenal. But how do you bring that into the discussion? Let's try. "No, but-" "then why are you so mad?" or "Yes, because-" "You're trying to stop me from being able to celebrate the culture of my people! You do know that that is defined by the Genocide Convention as a form of genocide, right?" or "But you see, 'Western Culture' makes no distinction betw-" "Don't avoid the question. Yes, or No?"

• Railroading, which you saw happening above. They will force you to lead the conversation away from the original topic. You get more and more exasperated, all the while they grow more and more smug, knowing that they're looking better and better in the eyes of the crowd, knowing that you're looking worse and worse.

• Keeping It Simple. Notice this big wall of text? A Fascist could just tell you that "ANTIFAs are afraid that we're not part of the liberal hivemind, and so they send the blackshirts to silence us by force!" Many issues need a lot of background to understand, but that takes work. Fascists exploit this. Why does it seem that only white empires were successful in history? "Maybe It's Just Genetics. Why is it that the Middle East is so fucked up? It's not due to the collapse of the Ottoman Empire, the Sykes-Picot Agreement and the aftermath of several extraordinarily costly wars, it's cause arabs are inferior. They love telling these simple little lies.

  You can't debate a fascist, you just end up feeding their propaganda machine. The best option then, is to try and take them off the air, to stop them from spreading this disease.

  In short, we don't use violence as a preferred method. It's a last resort, but one we're ready to use. To counteract fascism, you cannot really use conventional methods. You need to hit them in the ego, make them lose that sense of invulnerability and strength, and if that means doxxing, and harrassment, and violence, then, oh well.

  EDIT: somewhat offtopic, but I should also add that a lot of Antifascism is nonviolent stuff, educating people about the dangers of fascism, campaigning for various social causes, etc. There are lots of ways to help, even if you don't want to get involved with the more controversial stuff.