Once deportation starts in earnest the foreign invaders will get the message and head south on their own.
Enforce the Current Laws. Pass Legislation requiring ALL employers to use E-Verify. If they are found to have violated that law, make it a Felony 5 year prison term. If anyone uses false documents to gain employment make it a Felony, 18 minimum month Prison term followed by immediate deportation.
Eliminate all EITC for anyone not a U.S. Citizen, because after all it is just repackaged welfare to start with. No coverage for anyone under Obamacare unless verified U.S. Citizen. (Enforce the Law) No section 8 Housing without first using E-Verify to check for citizenship. Same Terms and Sentencing for Workforce participation as for violators of Section 8 housing.
They'll be lining up at the border heading south within days...