My point, SK is that many/most? older illegal immigrants initially housed in the US by younger family members were supported by US taxpayers.
It it was known by the family member(s) who brought them over to live with them that they wouldn’t have been eligible for any benefits as an “illegal immigrant” and would not be able to be treated at US hospitals, ask yourself if the older family member would have decided to come to live in the US under those circumstances.
In short, the US laws and lack of immigration enforcement made it easy for illegal immigrants to come over and take advantage of us.
