Doesn’t seem to affect Mexicans.
Unfortunately, the declining birth rates are mostly (though not entirely) occurring in the developed world, while birth rates are high as ever among Mexicans, Central Americans, Arabs, and Sub-Saharan Africans. And as another poster said, they're all exporting in bulk.
Actually birth rates are way down in Mexico and the rest of Latin America. Not as much as here, but not what they used to be. When people have the option of birth control many will use it. Here’s a site where you can graph the birth rates of countries around the world. These are just from 2000 but the longer term trend is the same.
https://www.indexmundi.com/g/g.aspx?c=mx&v=25
Actually Mexican population is stagnant and reversing cut to decades of emigration to Azatlán
2.18 birhrate today
Nearly 7 in 1980
I’m with you I woulda thought Mexico was Nigeria birthrate wise