Palau is a very small nation, and impoverished to boot. Survivor was filmed on one of those islands, I might add.
Getting illegals out of the U.S. is important, and especially out of American jurisdiction so Democrat courts will find it difficult to interfere. And putting them on a tropical paradise makes it impossible for anyone to accuse the Administration of dumping them on some hell-hole. I would; I'd cut a deal with Svalbaard, or perhaps ask Argentina to let us use Terra Del Fuego. But I'm vindictive that way, or rather I think such exile needs to be rather unpleasant so nobody wants to risk it. Punishment must be meted out to people who break the law or everyone will do it. That's how laws are enforced.
Maybe with Chile making a hard right turn we can get them to rent us some of their lovely desert areas?
Rush Limbaugh used to call Gitmo "Club Gitmo" and talk about it being a tropical paradise. Who can complain about a free vacation?