No, I am not. The fact that I did not would be consistent a) with my post which didn't mention EMTALA and b) with the fact that I'd never heard of it.
Nevertheless, Mexican nationals are receiving abundant health-care assistance from the State and municipal (county) governments of Texas, aren't they? Which is consistent with one of the stated objectives of the 2001 proposal. If it didn't go forward, one reason might have been that Mexican nationals illegally resident in America had already found, in the Harris County health care system, an acceptable free subsitute.
EMTALA is the Federal law requiring hospital ER’s to evaluate and stabilize all comers without question as to ability to pay.
I wouldn’t have clue about the motives of the Harris Co. indigent patients, legal or not.