Much of that "people were happy under communism" BS is just that: BS. As anyone past the age of about 30 would tell you, you tend to forget the shitty stuff a lot faster than the good stuff. As a result we often hold these romanticized notions of how things used to be. Yet if you actually go ahead and look at some videos from 20-30 years ago from those parts of the world, you see North Korea. No one seriously wants to go back to that, except for US "progressives" who believe rich people should not exist.