Are Their Natural Curbs To Fertility ???

Here are two related reports:

https://www.zerohedge.com/geopolitical/visualizing-worlds-plummeting-fertility-rate

and

https://www.theguardian.com/global-development/2023/apr/13/ghana-is-first-country-to-approve-oxford-r21-malaria-vaccine

Ghana's fertility rate is currently 3.62, comfortably above the replacement rate of 2.1 births per woman. And note that in general, developing nations have higher rates than so-called developed nations.

While no one should be against medical interventions which save lives, isn't it possible that diseases like malaria are a natural curb to the unrestrained growth of the human population?

If the global trend continues, people of the Global South eventually will dominate the planet, at least in numbers. Is Big Pharma actually developing vaccines to save their lives, or to reverse the trend?

And is tampering with poorly understood, natural feedback mechanisms really a good idea?

Update - 4/25/2023

Here is additional discussion:

https://www.ghanaweb.com/GhanaHomePage/NewsArchive/Ninety-percent-of-Ghanaians-have-malaria-parasite-Noguchi-1754759

If 90% are infected but "unaware", that implies they are asymptomatic. Perhaps we should find out why?