One reason the US was caught by surprise by the first Soviet atom bomb in 49 is that we assumed that the Germans during the war were way ahead (because: Germans) and the Russians were far behind (because: Russians). The idea that we didn't "vilify Russians" during the Cold War is just dumb.
My recollection from the Cold War is that we very much vilified Russians in general, not just the Soviet system. It was kind of a requirement for getting behind the idea of killing 100 million of them if the war were to go hot.