The authors book Human Kind (Rutger Bregman) argues that we have developed a pessimistic view of ourselves - and the vast majority of humans are basically decent people.
It’s got a lot of similar stories, where he revisits historical events and science experiments that have been used to paint humans as feral animals - and manages to debunk them, or at least expose the fragility of that argument.
He suggests that Survival of the Fittest is also a flawed concept - and that humans have succeeded because of superior collaboration and cooperation.
Review (and better synopsis) here - but it’s a heart warming read.