Yes - Illegal Aliens should be deported.
Self-deportation would be better - causing them to want to leave on their own, at their own expense, quickly.
We can start by crucifying employers of Illegal Aliens (metaphorically, in the law-courts: imprisonment, big fines, etc.).
We can enhance the effect by having a 5-4 SCOTUS declare Sanctuary Laws un-Constitutional whenever practicable...
It would also be great fun to watch US Marshals drag the Governor of California down the Capitol steps in handcuffs...
- Charge: Conspiracy to obstruct the enforcement of Federal law
Afterwards...
1. make it unlawful to allow an Illegal Alien to wire money out of the country
2. make it unlawful to provide an Illegal Alien with a bank account
3. make it unlawful to provide an Illegal Alien with educational services
4. make it unlawful to provide an Illegal Alien with welfare benefits
5. make it unlawful to provide an Illegal Alien with medical services except for emergency life-saving measures
6. make it unlawful to provide an Illegal Alien with a drivers' license or identity card
7. Make it unlawful to provide an Illegal Alien with housing
8. Make it unlawful to provide an Illegal Alien with an automobile
9. Make it unlawful for an Illegal Alien to utilize public transportation, except to leave the country
And on and on and on...
Making continued presence in this country untenable for Illegal Aliens...
Then watch 'em scamper for the border at the speed of light, under their own power, at their own expense, without us spending a dime on deportation.