This reminds me of some author (I've never been able to relocate where I read this) who posited that USSR was not the enemy of the West because it was (by the time that he was writing) 'conservative'.

It also reminds me of two incidents alleged to have involved Leonid Brezhnev. It is unclear whether either actually happened.

One incident allegedly involves Brezhnev and Thatcher (some other sources put it as Brezhnev and Callaghan). Brezhnev is alleged to have said: 'There is only one important question facing us, and that is the question of whether the white race will survive.' In the Thatcher version of this story, Thatcher allegedly stormed out of the room then and there, rather than answering Brezhnev.

Another incident allegedly involves Brezhnev and Nixon. Brezhnev basically says that the USA/USSR are the world's two 'White powers' and that they should be on the same side against Red China. He also mentions that if nuclear war breaks out between USA/USSR, the browns and yellows (he refers to them by skin colour) will be ruling the Earth. Nixon was supposedly silent, not replying to these remarks.

If these events were true, this has the amusing implication that a literal part-Tatar Communist leader was more 'racist' than Thatcher or Nixon. Some Far-Leftists have attempted to explain this away by claiming that Thatcher and Nixon were 'racist' and that Brezhnev was simply talking in language that they would understand, i.e. by appearing to be a fellow 'racist'. Obviously there is something off about this excuse given that neither Thatcher nor Nixon were 'racist' enough to even respond, let alone agree.

Personally I disagree about viewing the USSR as a continuity of the Russian civilization. But there are some who have believed it. For example, there was a Russian dissident who returned to Russia long after the revolution, claiming that the Bolsheviks had become patriotic. Because his opposition to them was on the basis of their internationalism/anti-Russianism, he thought that the differences between him and them were essentially gone.