Lots of talk of doing this to a group called "illegal aliens". The problem is deportation is what government does to its own citizens. Aliens get TRANSPORTED.

Where do they get transported to to?

HOME.

That is where they were born.

Source: Bouvier Law Dictionary

DEPORTATION, civil law. Among the Romans a perpetual banishment, depriving the banished of his rights as a citizen; it differed from relegation (q.v.) and exile. (q.v.). 1 Bro. Civ. Law, 125 note; Inst. 1, 12, 1 and 2; Dig. 48, 22, 14, 1.