There’s baggage with Nazi that doesn’t really apply and it hurts the argument. The Holocaust is the big one, there’s nothing remotely on the same level happening, lots of regimes have rounded up a particular minority, but systemic extermination is extremely rare. Maga also seems more isolationist than expansionist.

There are strong parallels that can be drawn, but at there’s also contradictions. It doesn’t help that Nazi has routinely been used as a placeholder for super evil and go to for exaggeration. By using Nazi you allow your criticism to be dismissed as hyperbole. Until Trump invades Poland with Russia, it’s probably best to use a different term.