I know it's not happening but it's not sarcasm. It's my answer to the title question. It's what it ought to be along with this.
- Deport illegal aliens on contact with LE.
- Enforce the law vigorously on employers of illegals.
- Strong border security. Build the physical fence and use high-tech surveillance.
- Eliminate entitlements for illegal aliens.
- End the "anchor baby" policy.
Do those things and illegal aliens will deport themselves and pay for the trip.