The Red Scare is still working it’s magic I see. I don’t think many people think that communism is the perfect system. Even the ones who support it. It’s just that after living in a capitalist hellhole our whole lives and watching the world burn, some of those ideas start to look like they are worth trying.
Star Trek is a good example of what the endgame of communism is supposed to look like. It’s just the process of getting there that is hard to figure out.