As a species we have evolved with certain traits. These traits are the reason we are the top.species. Try as we may, with society, we cannot just blink these traits away,; no living thing can evolve that fast.

So whenever someone comes up with a great idea of how things could be in society, they often ignore our species' traits of ruthless ambition, persistent survival, tribalistic loyalty, etc. It is like when people get border collies thinking they'll be great pets, but then realise their true nature and how much work and.effort has to be put into them every day to get.the most.out of them.

Idiots think we're somehow different and beyond the other animals, but we're not. How society is today is exactly how we are. If someone wants to change it, they need to factor human nature, else it won't work.