Nazis are abhorrent and dangerous because of the content of their beliefs, not just “because they are Nazis”. It’s important to understand what those beliefs are and why they are dangerous, because not everyone who believes them is explicitly labeled a Nazi. Those beliefs are reprehensible and harmful no matter who holds them or how they identify. An adherent of Nazi ideology is a Nazi, regardless of how they may choose to label themselves.
Just because they claim to be the “Leader of the Free World” doesn’t mean they aren’t a nazi.