What you need to do is find a reference to the admission of millions of Moslem people from Bengla Desh into the Indian state of Bengel at the time of the Pakistan civil war.
East Pakistan (Bengla Desh) sought independence from West Pakistan (present day Pakistan). The West Pak army invaded the East.
At the conclusion of the war the Pakistanis didn't want to go home ~ India is, after all, a much better place than Bengla Desh.
It took several years but India did send them home ~ all ten millon of them.
In recent years more Bengla Desh people have come into India without permission. India has been catching them and sending them back. They recently built a large fence around Bengla Desh to stop this traffic in humans.
You'll find some pretty good stories about the fence in news stories within the last few months.
India now has a wall/fence up..
it took them several years but they did it...
Very very interesting.
If millions of ants can migrate in a season, and salmon as well, I see no reason why people can’t do the same.
However, Israels successful use of a fence as well as that of San Diego should also be persuasive.