Deport them on old Carnival Cruise line ships. To send them back by the thousands to Asia, Africa, Latin America. If they riot onboard and try to hijack the ship. Then the crew retreats to a safe room module.
The plug is then pulled on the ship by remote control. The crew’s safe module is lifted off the sinking ship. Using an industrial helicopter.
Important question. Does the country already have the funds budgeted to transport illegals to these concentration camps, provide food and minimal shelter, and then pay to transport them to other countries by land, sea, or air? If the funding needs to be voted by Congress, that is a whole different ball of wax.