The theories of Karl Marx has made us to understand that an equal society is possible if the society work in unity. Search has shown that 80% of relationship between societies is strictly bias and profit minded which make it difficult for equal society to exist. The rich hate the poor to reach the class and the poor hate the rich for always staying at the top. A quote says: the rich cannot sleep because the poor are awakes and the poor can not sleep because they're hungry. This are part societies from the pictures of seeing people equal or leadership doubtlessly working towards equal societies. Is any society that practice equality laws and equity for oneness in all shared resource?
Actually, those in control are the ones who destroy themselves and their control. Their greed does this. They use their control to harm the poor people. It happened over the last couple hundred years in Hawaii.
History shows that the people find a way to take the power away from the wealthy controllers who are harming them. Maybe Karl Marx was honest in his thinking. Maybe he wasn't the kind of person who would harm anybody. Maybe he truly wanted to benefit the people. But if he really was a good guy, then he underestimated the ambition of some people to take control, and their ignorance regarding how their wrong use of their control would destroy their control while harming a bunch of little people.
If you want to see what happened in Hawaii, watch this interview between Tucker Carlson and Tulsi Gabbard - https://tuckercarlson.com/the-tucker-carlson-encounter-tulsi-gabbard/.
This is the big flaw in Karl Marx. Maybe it can be overcome with a true Bitcoin-like, decentralized economy... set up so that there can be no controllers.
