I don't understand some peoples' concern that low birth rates

[hunter]

21. The only birth rate that truly matters is the birth rate for all humans.

There's only one earth and one species of humans who have migrated by land and by sea throughout human history, populating all the continents and major islands except Antarctica thousands of years ago.

All the other concerns about birth rates are based on racism, nationalism, or religion, as expressed by people who believe in some sort of cultural purity, a sort of purity that has never existed even in places like North Korea where dissent is severely punished.

I'd flippantly say the ruling class is fearful of low birth rates because it reduces the number of naive young people they can exploit.

It would be a good thing if human population growth was zero or slightly negative. We humans are exceeding the carrying capacity of our environment.

We can achieve zero population growth by the political and economic empowerment of women, easy access to birth control, and realistic sex education. It's not a coincidence that these are the progressive goals that "conservatives" of many different nationalities and religions oppose.