If Trump is a fascist, especially a Nazi, he's certainly a very poor one.  If his followers are fascists, they sure cling to a lot of non-fascists ideals.  One of the defining traits of Nazis was their violent antisemitism. Trump ended the Iran nuclear agreement, something that the Israelis celebrated, and their Prime Minister at the time called for in front of the UN.  This paved the way for one of Trump's in-laws, one of his Jewish in-laws to broker a peace deal between Israel and several neighboring Arab states.  He then moved the American embassy in Israel to Jerusalem. These are things that a true Nazi would have a hard time doing, and even a harder time selling to his supporters.