If a President Trump gave a speech in which he loudly said he intended to deport EVERY illegal alien, jail every illegal who committed crimes then deport them, would come down HARD on employers who hire illegals, & then proceeded to implement such a policy, I believe many illegals would self deport. No jobs & no benefits would be a powerful incentive to go home.
Obama has put out the welcome mat to illegals & covered it in cash & benefits. Of course illegals will come here under those circumstances. I would, too.
That has always been my thesis.
If we actually fully enforce the laws we have now and get rid of the anchor baby BS they would stop coming.
If any local, state, fed government agency was forced to turn them in when they encountered them, etc.
Make it very uncomfortable to hire them.
If there was no way for them to ‘get by’ here then yes, most would self deport.
The rest would just be a matter of time until they were caught and deported.
No need for a wall at all.