During WWII, the communist USSR labeled the Nazis as far right extremists. Nazis were socialists, a little to the right of the USSR, and no more fascist than their communist counterpart. But the right winger label conveniently sticks in the heads of the brainwashed left, since playing "pin the Hitler mustache on Trump" is their favorite game. Challenge a leftist on the fact that Nazi stands for the National Socialist German Workers' Party and they immediately go into their well rehearsed denial narrative that you don't know what an actual socialist is.
It's an age old tactic to say, "look at us...we're the normal, rational ones...y'all are radical extremists." 🙄