Could you spell out what specifically you find significant about this quote?
[1] Which was not about the situation in USSR itself (they could not care less, they supported worse attrocities before and after the war), but about losing their colonial and geopolitical influence, and about their own workers being "tempted" into socialism and demanding more rights, unions, and such.
Right?
The "anti-democracy" communists did more to get rid of Nazis and fascism than all of Europe and US combined (the latter, especially, came late to the party, with token gestures like Normandy, and have since used movie after movie to instill in popular culture the idea they "won the war"). And had a much bigger toll.
And if it weren’t for the monumental material support in form of the US-provided lend-lease arrangement, the Nazis would’ve conquered the Soviet Union and carried out a genocide that’d have dwarfed the Holocaust.