Because birthing is a very dangerous act and endangers the mother mortally. If you wanted to genocide someone you'd start with the children and women, with a Lack of women the men will follow suit, because of lethal competition and the aforementioned wars.

The lack of birth control is exactly exacerbating that.

With a lack of birth control it is not the amount of workers that rise, bit the amount of dead women and children during the birth process.

We are beyond the profit Phase of capitalism, they fell into AI psychosis and think they dont need us anymor, since soon AI can replace our necessity.