If the population of Mexico was still rapidly expanding, this might be an issue. But the fertility rate of Mexico has collapsed over the past generation.
And guess what?
So has the number of illegal immigrants flooding into the USA.
Look up the most recent stats.
Then you can catch up with the debate at hand.
I still see millions of them living and working here.
Left unanswered was why, if the high birth rate was so healthy economically for Mexico - they had to export so many of them, and remain mired in poverty?
Are you saying that if they stayed and worked in Mexico the economy of Mexico wouldn't be a basket case? That is an interesting argument to make.
But really - the issue is an EXPANDING human population - and it will be for a long time even by your demographic “worst case scenario”.
The children now being born -when they grow up and have children - who then grow up and start having children sometime around 2050 - THEN there might possibly be a problem of a declining human population IF current trends remain consistent for almost 40 YEARS!
So your argument seems 40 years premature - at least.
Until such dubious scenarios as a current trend remaining consistent for 40 years play out - the current debate at hand is about an EXPANDING human population.
:)