I would expect illegal alien parents to take care of their children. If it means the kids go back home with them that's what happens. If it means there are legal relatives in the United States that can take care of them that can happen to. But I believe it's the parents responsibility to take care of the kids.
It is better by noble boldness to run the risk of being subject to half the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.