The fertility numbers I mostly see come from twitter no from real sources. Basically from stooges. Real fertility numbers are more difficult to calculate than just a child per every women. China still putting an entire nation every single year.
I am not picking anything from twitter. Go to Zhihu if you want, there most people believe that the birth numbers are cooked up higher by the stats bureau. Maybe I can post 10 sample answers if you want.
Given that the smallest country has a population less than a 1000, that's no big deal. What matters is can the births replace the current population? Can the births increase the population? Are the births enough to sustain a state's geopolitical ambitions/goals.
False attribution. You think Japan's woes are only due to its low birth rate? It's due to the fall out from the plaza accords, and they never recovered. Their industries failed to be competitive after the real estate bubble burst, which was a result of the currency changes from the plaza accords. They're government allowed US companies to steal their tech secrets and made them limit exports.
Trying to bring in birth rates at the main cause is disingenuous.
Have you read my conversation, I was just replying to a comment which was 50% about Japan's demographics problems.