The Soviet politician Breshnev on language in the USSR:
"
under developed socialism, when the economies in our country have melted together in a coherent economic complex; when there is a new historical concept—the Soviet people—it is an objective growth in the Russian language's role as the language of international communications when one builds Communism, in the education of the new man! Together with one's own mother tongue one will speak fluent Russian, which the Soviet people have voluntarily accepted as a common historical heritage and contributes to a further stabilization of the political, economic and spiritual unity of the Soviet people."
This guy wasn't even Russian. So basically, there would be a Soviet language and you could keep your own tongue. That doesn't sound like a group that is fine with any language, any time, if even non-Russian USSR members thought Russian should be a central language for the whole empire. Now, correct me if I'm wrong, but by contemporary American standards, are Socialism and Communism left or right leaning?....
Authoritarian attitudes are the problem, not left/right specifically.
Your thread is silly and it's fine if people want to treat it as such. That being said if your premise is that this guy was a representative of the alt right and you think things like "Oh, the US wasn't nationalistic when Kennedy suggesting you should think about your country ahead of yourself netted wide acclaim!" you're off your bloody rocker.