Agreed, but they don't ALL go to the hospital, just the ones that really need care. So figure....I dunno twenty percent?
And, it is not just plane tickets for whole families, lots of them have kids that are legal so you are going to have to pay social services and costs for the kids to stay here? Plus you know they are just going to come back so you will have multiple plane tickets. Hell they might get caught on purpose so that they can fly home for the holidays.
You are making a very complicated situation overly easy.
The ultimate thing would be to jsut stop them from getting in but our boarders are rather easy to get across the way they are now.