It's not just about having a belief that their economic system is better, these people feel like they're possessed by cult like quasi-religious force, as were past ones like in the cultural revolution. It's the only way the current environment in the US makes sense because it's not logical whatsoever for this many people who grew up in Western countries to think having a revolution and replacing it with an ideology that's clearly failed is a good idea.
Why does this keep happening to human race? What is actually motivating them? Noting that these commies are insanely manipulative and dishonest therefore what they really claim to care about can all just be a front, like arguably the entire usage of race.
You answered your own question.
it always comes down to 1 simple thing: a call to authority. Yes illogical as it may seem, people fall for it, because they no longer love virtue and freedom, but they are being moved by their short lived interests.
This makes them dependent.
The process is logical. The choice these people make is not. True. In essence, this lies at the heart of things.
There is one book that made it very clear: Oera Linda bok. https://greatawakening.win/p/17si9xggx4/x/c/4ZA11kngIoC
Read carefully.
This video made by Chris Chapel of China Uncensored discusses the issue with communism and propaganda. https://yewtu.be/watch?v=95ZGKQX2Cps