There are no Nazis in America. No one who has ever been called a Nazi by SJWs is actually a Nazi. Even the people who call themselves Nazis are not Nazis at all; in fact, most Neo-Nazis don't even know what Nazism is.
Fascism quite literally means ethnocentric nationalist socialism. In other words, a kind of business-centric socialism where the means of production are not fully centralized, and where there is a focus on improving the welfare of one's own race above all others. As a deeply authoritarian ideology, it's pretty much diametrically opposed to the right-libertarianism of things like the patriot movement. Even many self-avowed Neo-Nazis today have no idea what fascism actually was or what it stood for.
The closest thing to fascism still existing today is what the Communist Party of China practices, which is the same exact thing as the Nazis; ethnocentric nationalist socialism focused specifically on the racial welfare of the Han people, with businesses that practice self-administration and a government that merely nudges them around to produce this or that as needed.
In modern SJW parlance, a Nazi or a Fascist is "anyone I don't like". The terms have been diluted so thoroughly, by this point, it's arguable that they don't mean anything at all.