[cardanome]

Every person also has needs meaning they add demands for niches to be filled. So it balances itself out.

If someone doesn't fulfill their niche they tend to take more than they give creating imbalance.

So your implications don't really follow strictly from the stated axioms. Though yeah, generally, yes, more people are a good thing as it means more people that can help drive humanity forward. (Obviously there are factors why having as many children as humanly possible is not always a good idea though.) Also some religions strongly encourage people to have as many children as possible so it is not a super uncommon view.

[mulmen]

> If someone doesn't fulfill their niche they tend to take more than they give creating imbalance.

This seems like harmful thinking. Should I feel guilty about being depressed? What about victims of circumstance? Do they owe society an apology for their trauma?

[cardanome]

The mistake you are making is thinking the sentence is meant to assign individual responsibility for finding your niche.

Not at all. The article and I agree on that point is pretty clear that it is a societal responsibility. People not being able to flex their individual talents is a failure of society not the individual. And yes there are niches for depressed, traumatized people, there is a place for everyone.