General Population Law of Mexico translation:
https://www.wilsoncenter.org/sites/d...0KOSLOWSKI.pdf
Your anecdotal evidence showing they don't deport Americans does not equal nonexistent immigration policies.. The US has a "problem" with Mexicans, Mexico has a "problem" with Central Americans..
https://www.wola.org/2015/05/border-...order-efforts/ - these are minors fleeing from bad situations and they are still being deported.