I will only support mass round ups deputizing citizens if necessary due to a shortage of federal officers.
We have over 900,000 LE in this country who should be deputized en masse to do it. And any citizen who wants to assist, should be.
Let be known that ALL illegals will be deported, start some aggressive raids of employers and you will see the self deportation start in earnest. Agree to not fine the employers if they make a concerted effort to hire out of work Americans.
Start a reduction of welfare benefits in conjunction with the mass deportation efforts.