I think that's a denial of reality, though. Soviet Russia killed roughly 10 million of its own people [1]. Mao's Great Leap forward killed roughly 45 million people. [2] This isn't some "they mucked around in someone else's backyard--cultural interference!!!" badness. Together, Russia and China killed the same number of people that World War II did (~ 55 million), and they did this to their own subjects. What the U.S. and other Western democracies did was to prevent these horrors from visiting the rest of the world.
What Russia and China had in common, and still do, is that they were, and still are, totalitarian dictatorships. China happens to be the largest, most technologically advanced one we've ever seen. But it still is one. Totalitarian dictatorships are worse for the world. History has taught this much, at least.
You won't hear me claiming that USA and Western democracies are "beacons of goodness", but it's silly to say "Nay! Nay! They're worse!"
[1] https://en.wikipedia.org/wiki/Holodomor
[2] https://www.independent.co.uk/arts-entertainment/books/news/...