Using sterility as pest control dates back to the 1930s, using RNA techniques is obviously much newer
This describes the process
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325135/
Of course you only need some idiot to experiment on that with human DNA then let it escape the lab to create "Children of Men". Gain-of-function research is thought to be responsible for Covid pandemic...
And sure big Pharma will develop the sterilization pill for men one day, already working on it.
"Eppin is a protein found in sperm. A vaccine to target this protein has been successful in lessening sperm counts. Other potentials for a birth control vaccine are GnRH and FSH (follicle-stimulating hormone).
The birth control vaccine is not reversible in some men. This vaccine also needs frequent booster doses and is not fully dependable."
But it must be something to take weekly/monthly to make money, so hopefully they don't research permanent sterility. However There are always religious nutters that might.
AI, DNA manipulation, Global warming, makes WW3 seem the least of future worries.
