Also, I should point out that the author is 19 years old. I hope he is an exception, but my views at 19 for complex geopolitical issues were simply rubbish
After this no country has found a solution to the below replacement birth rate, despite all being aware of the problems that will come with it.
Besides stating them, can you provide a rationale why your proposals would be a solution, and why no country has successfully arrived to the same conclusions as you and implemented them?
If you look at the World Bank numbers (https://data.worldbank.org/indicator/SP.DYN.TFRT.IN?location...), the birth rate is at 1.7 children per woman. This means the population is actively declining.
Generally, any birth rate below 2.1 means population decline (without taking immigration into account).