There's more nuance here than your fable can expound on.
Some people don't want to bring a child into a world in its current state, some cannot afford it, some do not want the externalized costs, etc.
Choosing not to have children isn't always sour grapes.
It's a choice- let them make theirs.
My wife and I are okay with our cats. I don't think we have any regrets in this area.
There's more nuance here than your fable can expound on.
Some people don't want to bring a child into a world in its current state, some cannot afford it, some do not want the externalized costs, etc.
Choosing not to have children isn't always sour grapes.
It's a choice- let them make theirs.