White supremacism is illegal; opposition to it is required by federal law. White supremos and Antifa are in no way equivalent. 

Hell, the AntiFa are not even socialists, as far as I can tell. They're more like BLM: an ecumenical social movement, that is, one that is ideologically unaligned.

One might hope that even Conservatives could be antifascists, although the ones on here seem more concerned about violent opposition to white supremos than about white supremacy itself. That's what white privilege looks like.