Trump has also talked about self deporting. Make conditions such that they will need to deport themselves. It really isn’t possible any other way, particularly sanctuary cities that do not allow ICE any access at all.
Trump was inspired by Eisenhower who deported all illegal aliens in the 50s through self deportation...he made conditions unsustainable for illegals.
I don’t think it will be so easy this time.
Can E-verify be implemented for all current and future workers?
Can work permits be rescinded?
Those two moves would help.