The Communist thought (and some still do) that Communism was a truth. They had plenty of scientific theories and human observations to support their truth. Millions of people were killed for this mistaken belief. Communist also saw/see religion as evil. Anyone who sees religion as inherently evil, fails to grasp the nature of man or the nature of evolution. For example, we fought for thousands of years before Christ or Mohammad even appeared. Yet the world is full of fools who claim that all our wars were started because of religion.
There weren't literally millions of data points supporting communism. There are millions of such data points supporting the Theory of Evolution.
Anyone who sees religion as inherently evil, fails to grasp the nature of man or the nature of evolution.
One can believe religion is evil and still understand human nature. There is nothing that says human nature cannot be evil. (Oh, and the "or the nature of evolution" is a total non-sequitur.)
For example, we fought for thousands of years before Christ or Mohammad even appeared. Yet the world is full of fools who claim that all our wars were started because of religion.
Not all of them. But it also foolish to argue that religion is some kind of unmitigated good, especially given the fact that countless millions have suffered and died on account of it and continue to do so to this day.