Idk where u from, but here in Russia it's not only socially unacceptable but is also a literal crime which falls under incitement of violence and rehabilitation of Nazi ideology.
Russians looking top-down on Caucasians (from Caucasus, not in the American sense of the word) or Central Asians is a thing, but there are nuances, e.g. the relationship with Chechens.
Like very seriously, I am not saying Russia has Aryan supremacists. But it has strong enough and big enough groups that are so similar in everything except who gets to be on top, that "white supremacy" is perfectly good descriptor in English speaking forum. And neonazi fits perfectly their group behavior. Down to similar symbolism and preferred music.