Humans build things and care for each other. This is what we evolved to do. It's something we're driven biologically to do, and we feel bad when we don't do it. That bad feeling is every ancestor who survived through mutual aid burying every (not) ancestor who died from competition.

We build commons. Capitalism is a system that maximizes the extraction of value. Looting commons, be it land or water resources managed for generations, or a tradition of information sharing built up over generations, or systems of trust built up over decades, capitalism is a machine that turns shared wealth and shared costs into centralized wealth and externalized costs.

Capitalist markets are basically a genetic algorithm that uses wealth as a fitness function. One of the properties of these algorithms is that they will have side effects. Destroying commons is an unavoidable side effect. Every possible common will be destroyed until we choose a better algorithm on which to base our society.