It’s a bad movie that you might have seen before. It tends to show up whenever an advocate of voluntary cooperation explains how society could operate without state coercion. Right on cue, the zombies from “Night of the Living Statists” rear their heads and mindlessly intone, “But if there’s no government, who will build the roads?!”
The zombies can’t hear your response, so it’s useless to try to give them facts and explain how things could be done in a way that’s better for everyone if roads and other such things were provided as private services rather than as coercive government monopolies. For those who are open to the facts, though, is there any evidence that people can actually cooperate voluntarily for their own interests?
As a matter of fact, there’s quite a bit of evidence of that.

Little remains in me of the person I was when I married for lifetime
Do I oppose rulers because I hate rulers — or because I hate rules?
Understanding often matters more than solving someone’s problems
Today’s group hatred says world hasn’t learned Auschwitz lessons
My father’s death was proof that unhappiness quickly kills a man
No matter how ‘defeated’ you are, there’s a way to transform yourself
Narcissistic abuse often leaves victims feeling alone in the world
Hermit life looks good as world tries to make me a misanthrope