Concerning Immigration

After having a recent discussion concerning the pros and cons of immigration, I was interested to find a direct statement in the Book of Mormon:

"But, said he, notwithstanding our afflictions, we have obtained a land of promise, a land which is choice above all other lands; a land which the Lord God hath covenanted with me should be a land for the inheritance of my seed. Yea, the Lord hath covenanted this land unto me and to my children forever, and also all those who should be led out of other countries by the hand of the Lord.

Wherefore, I, Lehi, prophesy according to the workings of the Spirit which is in me, that there shall none come into this land save they shall be brought by the hand of the Lord." (2 Nephi 1:5-6)

Here we're told that all persons within the Americas were brought here explicitly by the hand of the Lord. If that is the case, there are some interesting implications concerning immigration, are there not?