By restricting immigration, the government directly intervenes in labor supply, artificially making it scarce resulting in inflated labor costs.
Anti-immigration is anti-free market. If you don't support the unconditional free flow of labor and capital you're literally, by definition, a Socialist.
Look at the original koine greek. The word they translate to mean "eternal" is "Aeon". How long was Jonah in the belly of the whale? Its not 3 days. It was an "Aeon". He got out. Thats because "Aeon" ACTUALLY means "for a time".
Did you know there are ZERO (0) known used of "Aeon" in 1st century Koine Greek literature of ANY kind in which it is used to mean "eternal"... except for translations of the Bible.