Redbrickbear said:

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No matter what your theory about birth rate collapse is, there’s some data point that disproves it. Japan didn’t have the pill when fertility collapsed. There are highly patriarchal countries where fertility is collapsing. It’s collapsing in countries that are still poor. It’s… https://t.co/R849QBqUGd

— Hunter Ash (@ArtemisConsort) June 7, 2026

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This might be why…

Contraceptive Lag: While abortion rates soared, oral contraceptives were banned for decades out of fears that legalizing the pill would lead to unsafe sex and a drop in condom usage. The pill was finally approved for widespread use in 1999.

Post ww2 in Japan abortions were routinely used for family planning.

A collapse in the global population looks increasingly inevitable. Fertility rates have fallen below replacement in more than 66% of nations.

No policy intervention has substantially reversed this trend. And technological progress seems to be accelerating it. A smaller, weirder… pic.twitter.com/ZBTrB7x8BG

— Eric Levitz (@EricLevitz) June 8, 2026

Mexico's total fertility rate has declined by almost 40% since 2019. Not a typo—TFR declined from 1.9 in 2019 to ~1.2 in 2024. In Mexico City, TFR is 0.8. https://t.co/I9P7McWKKp

— Derek Thompson (@DKThomp) September 22, 2026

Here's what fertility looks like around North America.

The list of regions with near-or-above replacement-rate fertility is:

Nunavut
Haiti
South Dakota

That's pretty much it. https://t.co/lmQiMXFcD1 pic.twitter.com/MQLah3f5y5

— Lyman Stone 石來民 🦬🦬🦬 (@lymanstoneky) September 22, 2026

Yesterday, I told you Mexico’s total fertility rate is at 1.2. Today, let me remind you that Argentina’s total fertility rate is at 1.05: screenshot from the Argentine statistical agency below. Yes, 1.05. Argentina, in 2014, was at 2.3: a drop of more than 50% in a decade.

And… pic.twitter.com/0KaKfpXJIL

— Jesús Fernández-Villaverde (@JesusFerna7026) September 23, 2026

Argentina reports 384,042 registered births for 2025, the lowest number since 1944. Only ten years ago, 770,000 births were registered. Total fertility may be hovering just above 1.0, which is still not the lowest among Latin American nations. pic.twitter.com/BoIANxfQhX

— Neolithic HVAC Technician (@AccurateCaption) September 23, 2026

Egypt's TFR in 2025 2.33 (down 18% since 2021)https://t.co/Wj7POvxnp2

— andyd (@andyd10) September 23, 2026

There are 22 states with fertility at or above 1.63

Every single one voted for Trump by over 10% in 2024. https://t.co/bx3eJpqxZY

— Great Reversal (@greatreversal_) September 26, 2026