If they are illegal, call ICE! I have no responsibility to help them break the law! Believing Christ condones law breaking is heresy. The only law Christ says to break is when man's law contradicts God's Law.
Roman citizens had rights under their system and could demand certain things from the government. A non Roman had no such rights. Christ commanded his followers treat people with compassion, but to condone law breaking wasn't one of them. It's the same argument about the Death Sentence. The 6th Commandment says we shouldn't shed innocent blood. Another way to interpret it would be "Thou shalt not murder". To say "Thou shalt not kill" is a little misleading in translation. Some have even taken this to mean we can't kill for food or step on a spider. We surely have the right of self defense and protection of family and country. To allow yourself and family to be slaughtered because you think God would frown upon self defense is sick.
If a person, any person needs food, why would I deny it just because they are illegal? OTOH, I would be ignoring the law to ignore their legal status. The Apostles had to abide by the law in their time and their are verses to cover that aspect of Christian life. It is also made perfectly clear that we are to follow God's law over man's law if they contradict. I can't find where God forbade nations having borders.
God laid out very specific borders for the land he gave the Israelites and for the areas in that land which he gave to the tribes.
What if they want a job?