“that these are God’s children and they must be taken care of.”
Not by the government and its handouts. Read your Bible Johnny widows and orphans. Everyone else should be good stewards by working and they can work in their own country and if things are that bad then do what we did in 1776.
I happen to think the best way to take care of them would be to stop providing the safety valve for Mexico to export surplus labor and encourage them to overturn their corrupt system and replace it with an American model.
This worked pretty well in Chile after Allende got his brains splattered out.
Mexico is a bit better since the PRI has been out of power, but corruption is still rife and Mexicans still have an attraction to a caudillo (strong man) leader. That’s why having too many at one time is dangerous. The oversaturation of Mexicans or any other less than first world group prevents them from not only learning the language and general culture—but also the political/civic culture of the USA. Those who are attracted to a caudillo style government make it easier for fascists/socialists to take power.