I post this all the time. The big deportation numbers of 400,000 a year or so. 97% of that number is simply Mexicans caught at the border and sent back (by bus) to Mexico. It is not Jose the habitual drunk driver in Minneapolis being deported back to Mexico. Or a Chinese cook found selling cocaine being deported back to China. Real deportations via airplane are expensive and too much of a hassle for the Federales to arrange. They do happen but rarely.
Too expensive? The Air Force & Navy visit foreign countries all the time. Load the illegals onto the first flight/cruise outta here & drop them off wherever.
Here in NJ there is no decline in the number of illegal aliens; the basic premise (that deportations had increased) was a hoax to convince working whites that they should vote for Obama (again).