Can I offer a different perspective?
A vocal minority on the left likes to assert that everyone on the right is a bunch of nazis but that doesn't make it true nor does it make it "in-vogue". If you move past that broad group ("the right") and just consider the more vocal/visible/strident right-wing activists, they are almost all promoting western civ cultural values, which is not the same thing as "white-supremacy" but irks the multi-cultural crowd quite a bit as it requires making value judgements on other cultures and ideologies (which is not the same thing as making a value judgement on other races or people with particular skin colors). I think the visibility/growth of this group is more of a reaction to the identity politics, multi-culturalism, and intersectionality ideas of the left than to Trump's election.
And if you move past both of those groups to the remaining folks who are indeed advocating for some sort of race or blood based supremacy theory you are talking about a insignificantly small group that has no support anywhere, certainly isn't in-vogue, isn't being "revived" in any substantial way, and mainly serves as the bogeyman that the left uses to smear anyone who disagrees with them.