In this new world we may need to accept that our individualistic nature has become that very same weakness that dooms our way of life in the great game of life.
The truth is that humans are social creatures that prefer the company and support of other humans. The way we spread around the globe as hunter gatherers was through cooperation and mutual support. A lone wolf cannot support themselves if they are hurt, or sick, or lack a skill, or simply didn’t save enough food in hard times. But a community can.
So, I don’t think our nature is individualistic so much as capitalism is individualistic.
First social creatures that "discovered" hierarchies were lobsters about 300 milion years ago. This is before even trees existed. Very long time from the evolutionary perspective, i.e. they do provide advantage to species that employ it.