You realize that's a practical impossibility, right?
Even if it is the more commonly accepted number of 11 million, at current rates, we'll never get them all out.
It is easy to get the illegals to leave. Enforce section 1324 title 8 which makes it a federal felony to encourage illegals to live here. Trump should prosecute anyone that hires an illegal or rents them housing or lets them use our schools. Do that and the illegals will leave overnight.
8 U.S. Code § 1324 - Bringing in and harboring certain aliens
(A)Any person who—
(iv)encourages or induces an alien to come to, enter, or reside in the United States, knowing or in reckless disregard of the fact that such coming to, entry, or residence is or will be in violation of law; or
(I)engages in any conspiracy to commit any of the preceding acts, or
(II)aids or abets the commission of any of the preceding acts,
shall be punished as provided in subparagraph (B).
(B)A person who violates subparagraph (A) shall, for each alien in respect to whom such a violation occurs—
(iv)in the case of a violation of subparagraph (A)(i), (ii), (iii), (iv), or (v) resulting in the death of any person, be punished by death or imprisoned for any term of years or for life, fined under title 18, or both.