If free (unrestricted) immigration is permitted anywhere, that place will inevitably be exploited by malicious actors who will fund its invasion by unskilled migrants and hobos, vagabonds, crooks, outlaws, etc. I strongly urge you not to become a propagandist for Jewish lies that endanger the lives of all property owners and those who share a common culture without giving the matter proper consideration.
https://mises.org/journal-libertarian-studies/case-free-trade-and-restricted-immigration