I want you to think about the size of the internment camps he's going to need to do that with anything more than a hand-wave... the water, sewage treatment, and transportation requirements, not to mention parking.
Hence, even if he could get them out of the country, it will be a handwave and we'll be right back where we are.
How about the country of Mexico as an internment camp?
They have to go home in order to apply to,come back
The ones who comply get first priority to legalize
America is not going to intern any ethnic groups on our soil
Just because a task is overwhelming does not mean it must not and should not be attempted