Nazism is not the same as fascism. You can say that the difference is like that between Coke and Pepsi, but there is a distinct difference (I can tell the difference between Coke and Pepsi, and I prefer Pepsi). I'm not saying that I'd take either, but they're not the same.
It is the left who has a history of supporting totalitarianism, and still do today.
Americans are so enamored of equality that they would rather be equal in slavery than unequal in freedom.
Alexis de Tocqueville
Both sides, taking a worldwide view, have supported totalitarianism. Franco, Salazar and Pinochet were plenty totalitarian, and plenty right wing. In fact, the American right wing supported Pinochet and may have put him in charge in the first place. The GOP were big supporters of Mubarak (plenty totalitarian), and at one point Saddam Hussein (plenty totalitarian).It is the left who has a history of supporting totalitarianism, and still do today.
But I guess we should ignore those instances because they're an "inconvenient truth" for you. I also don't go around equating those regimes with American Conservatives, because that would be a very tired and dishonest thing to do. Dishonesty, of course, doesn't stop you.