If the illegal aliens are unable to pay (and not all are - there are a lot of well-employed Chinese, Russians, etc. who are illegals) I think the countries of which these people are citizens should be billed for their care. It should be taken out of foreign aid if they don’t pay up. Believe me, that would take care of the problem!
I’m convinced Mexico is encouraging its criminals, seriously ill and least educated citizens to move North. Change the anchor baby law, send the criminals home, and if you’re uneducated, get in line for a student visa like every other foreign student.