This is an issue with the pension system. I don’t believe we’re overpopulated but it is clearly a bad system when it relies on a constant flow of more children

There’s many problems with the pension system, but the fact it requires humanity to continue to reproduce isn’t one of them.

It requires humanity to grow its numbers, this making it a pyramid scheme.

Growth helps, but it's not required. What is actually required is stability in the age pyramid. The problem is we transitioned suddenly from high growth to a population crash. Now the age pyramid resembles more a propane tank shape, and the pension system went haywire. A very slow transition would be easier to adapt to.

Not what I said. That it requires an increasing number of children to adults to continue is the issue. Personal retirement accounts is a much better alternative.