I only care about facts. Fact no. 1 capitalism is superior to socialism
Fact no. 2 fascism is left wing https://en.wikipedia.org/wiki/Fascist_Manifesto so if you are a leftie and "want to show that conservative/rightists" calling him a fascist isnt gonna work. however you can call yourself a fascist.
Fact no. 3 nacism, national socialism is both left-right ideology that combines ideas from both worlds. therefore calling someone a nazi doesnt mean far right extremist.