I can believe there are those who tell that Communism is evil because of famines (and mass murders), and that, of course, doesn't quite work knowing how nice European empires were. I think it works in the context that only European lives are human enough. I think that's also the reason that simple logic works well with people in Eastern Europe (Russia, Ukraine, Belarus included).
But the correct version would be that Communism is inefficient, incompetent, lacks feedbacks. It's weak. The British Empire killed all those people in conscious policies, as part of a calculated risk, and ultimately it reformed itself into the Commonwealth and quite a few allies. USSR's famines and mass repressions were driven not by some policy, but by lack of functional feedback, and ultimately it broke. Countries formerly part of the British Empire are strong and many of them even rich. Countries formerly part of the Eastern Block are weak and poor.