One question that the mass deportation supporters have not even begun to seriously consider is which countries are going to accept the deported immigrants.
They seem to believe that either there is some country called ElsewhereStan where they will all magically land, or that Trump will call up the countries and say "accept these refugees right now mofos, or... <gestures towards US carrier group>".
The mass deportation process is going to slowly sink under the weight of issues.