That is just not true. There is more empty space on this planet than there is inhabited space. There are more than enough resources to feed, house, heat, cool, and clothe a much larger population. The greed of dictators and the global elite that control populations is the problem. Man’s inhumanity to man is the problem.
Every new life is a hope for the future. The way populations are being controlled is evil. There are nature’s own barriers to overpopulation should it ever occur. This world has never reached that point despite what stupid men say.
We have had nature's own barriers for quite a while now: war, starvation, rampant greed, plagues that have wiped out millions, a lowering of inhibitions against unethical termination of human life . . . I've had about enough of all of them.
I'm curious to know what kind of nature's barriers you are thinking of.