The meaning of the term Nazi

Found on the Internet on a discussion forum:

Poster 1: “”Nazi,” like “fascist,” now means “a subhuman entity that does not agree with the speaker’s liberal politics.” And that is all it means now.”

Poster 2: “We had people goose-stepping through Charlottesville, waving Nazi flags, wearing swastika armbands, chanting “Heil Hitler, Heil Trump”, beating people with billy clubs and listening to a speech about how we need to kill all the Jews, Muslims, Blacks and Communists. There is no better word to describe them than “Nazis”.”