For millions to be deported (vs their self-deporting), it will require thousands and thousands being deported seven days a week in order to accomplish that during the next 4 years. My guess is that nobody has put together the logistics of accomplishing such a feat.
True , its if we have the will . Even tens of thousands a year will be a good , steady , and noticeable improvement . On a darker note , it is possible , given that Nazi Germany managed to murder around 6 million jews in camps . All this with 1940’s technology , and in the middle of not a small war , logistically speaking . The US with modern technology available to it , at peace , could deport several million in four years , this would grow if he got another term . Possible , but we will have to wait and see how serious he is . Possible , but we may need the resources in other areas .