Good for them! I became very peeved over the whole anchor baby thing while in my last town.
First the illegal mom and dad show up, have a kid as soon as possible (paid for by us). Mooch off the gov as much as possible. When the kids' are old enough, they have to quit school to work to bring home money. They hate that, so they go start they own family (now legal) and soak the rest of us for every benefit they can get and share it with mom and pop. Gads, what a situation we've allowed. Mexico would never tolerate it.