And none of those people who post about socialism understand that it's utterly unfeasible due to basi human nature, but it's funny to see them live in their own delusions. If only humans were better.
Humans are literally the most co-operative animals alive, which is why as a species we have been so successful. The unique advantage humans have over other animals has been our hyper-cooperativity.
Humans regularly will make decisions which are costly to them individually, but which benefit a larger group. This is reinforced through cultural norms as well.
The modern era has been a bit of a deviation from the norm of humanity co-operating to advance our civilisation. I’m sure that we will correct for our mistake soon.