He’s talking about Communists. The Soviets were a major part of the allied victory. More out of necessity than anything else. I don’t think Stalin wanted to fight the Germans. Not at all. That’s why he signed the The Molotov–Ribbentrop Pact, though I think he did want to use Germany’s war to try and take territory for the Soviet Union, and expand the Soviet sphere of influence. Regardless, the Communists were on the winning side and people like this guy hate that fact.

They hate communism because the stated goal of communists is to create a classless, moneyless, stateless society. Modern Conservatives might not be fully aligned with Fascists in general, or the Nazis specifically, but they do have one very key thing in common with them: their incredibly strong belief in hierarchy. What the Nazis and modern Conservatives share in common is a belief that some people are inherently superior to others. For this reason, the idea of a society without social classes is abhorrent to them, and so is democracy. They cannot stand the idea of a society ruled by the people. In this regard, they are much more clearly aligned with fascists than communists, or democrats.

Modern Conservatives are not necessarily aligned with liberals, either, although liberalism does not reject hierarchy nor does it require, or even prefer, democracy (see Chile under Pinochet). In fact, I would say liberals prefer that their “democracy” be one that is carefully curated by elites, experts, and certain members of the upper social classes, rather than a state that is completely subordinate to the people. In this regard, I would say liberals are generally more closely aligned with modern Conservatives than communists or democrats. However, liberals and conservatives differ greatly on matters relating to supposed “natural hierarchies,” like racial or ethnic hierarchies, as well as hierarchies based on gender, sexuality, religion, etc.