You can’t use it to deport anyone. The Alien enemies act is null and void. The 14th amendment and the Civil Rights Act make the use of the Alien Enemies Act illegal and unconstitutional. To use the Alien Enemies Act requires that you alter how the laws are enforced according to race, ethnicity, or national origin of the persons being targeted for enforcement. It was originally used to remove people of French origin because the Federalist party didn’t want immigrants from France or Americans of French decent supporting the Democratic-Republican party. (which is now the fake two party system we have)