What the Bible says about immigration and what right-wing conservative Christians believe/practice is utter hypocrisy.
Love and Feed Them
When a stranger resides with you in your land, you shall not do him wrong. The stranger who resides with you shall be to you as the native among you, and you shall love him as yourself, for you were aliens in the land of Egypt; I am the LORD your God.… Leviticus 19:33-34
For the LORD your God is the God of gods and the Lord of lords, the great, the mighty, and the awesome God who does not show partiality nor take a bribe. He executes justice for the orphan and the widow, and shows His love for the alien by giving him food and clothing.… Deuteronomy 10:17
Then the King will say to those on His right, ‘Come, you who are blessed of My Father, inherit the kingdom prepared for you from the foundation of the world. For I was hungry, and you gave Me something to eat; I was thirsty, and you gave Me something to drink; I was a stranger, and you invited Me in …Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me. Matthew 25:34-46
Do Not Oppress Them
You shall not wrong a stranger or oppress him, for you were strangers in the land of Egypt. Exodus 22:21
Do Not Pervert Justice, Practice Kindness
Thus has the LORD of hosts said, ‘Dispense true justice and practice kindness and compassion each to his brother; and do not oppress the widow or the orphan, the foreigner or the poor… Zechariah 7:9-10
Cursed is he who distorts the justice due an foreigner, orphan, and widow. Deuteronomy 27:19
Do not forget what happens when a Christian is cursed.