Massive drop in births and fertility in 2023! I wonder why?

In 2023, all across the world, the number of births dropped in almost every country and many countries by 5-10% with some significant European countries dropping by more than 10%.
 

Source
https://twitter.com/BirthGauge/status/1754259151537012784/photo/1

This is an existential threat to civilisation that is getting very little attention, although some in the MSM are starting to notice.

https://x.com/APompliano/status/1753083088593178726?s=20

Even Africa has dropped below replacement fertility and the civilised world is facing extinction.

What is going on?

What major global event happened in the the years leading up to 2023, noting that babies take 9 months to make so the factors affecting 2023 births are things that happened in the period 2020-2022?

Do you think any of the following things could be a factor?

1. Government restrictions that prevented people from socialising and finding partners;
2. Government mandated jabs that contained mRNA fragments of unknown effect but which clearly killed quite a lot of people and are causing chronic sickness in others;
3. Government restrictions that caused massive economic harm to the weaker segments of society;
4. Government authoritarianism and unwillingness to admit mistakes that caused huge loss of public trust.

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