Apprently you did not read that illegals are subject to the laws. An illegal alien is not a Ger. And yes, I am familiar with grace.
Actually, the distinction we make between legal and illegal was not in the sections you cited in the post.
Therefore, it is only by interpretation that someone can arrive at such a conclusion that our legal/illegal immigrant distinctions are present in ancient middle eastern cultures.
Nonetheless, I did demonstrate that Abe & Lot were UNWELCOME aliens, but that God did bless those who were fair with them and did not bless (sometimes punished) those who were unfair with them.