I mean…

According to this theory, poverty and inequality will increase as the price of assets and scarce commodities goes up due to fierce competition for these dwindling resources. This increased level of poverty eventually causes depopulation by decreasing birth rates. If asset prices keep increasing, social unrest would occur, which would likely cause a major war, revolution, or a famine. Societal collapse is an extreme but possible outcome from this process. The theory posits that such a catastrophe would force the population to “correct” back to a lower, more easily sustainable level (quite rapidly, due to the potential severity and unpredictable results of the mitigating factors involved, as compared to the relatively slow time scales and well-understood processes governing unchecked growth or growth affected by preventive checks).

https://en.m.wikipedia.org/wiki/Malthusianism

But it’s important to make the distinction between preventative and positive population control.

One is stuff like birth control, the other would be the stuff that should be banned

Lemmy.world did add that “harm no living thing” thing a while ago, but I don’t think they’re banning people for encouraging the use of condoms…