You’d be surprised about how many Mexican women in advanced stages of pregnancy somehow just happen to be vacationing in the United States when they go into labor. No kidding, there are three women in my office who proudly proclaim just that scenario as the circumstance of their birth in the U.S. They are actually militant about it.
I'll bet they are - people who live of the largess of others usually are contemptuous of those who paid their way.
There will be justice one day.