Again, you haven't been paying attention. His mass deportation plan is to round up, put into camps, and then deport
all illegal immigrants (not just gangs).
He was specifically asked if this would be door to door and if the national guard would be involved, and he said "yeah" and added in that local police would be involved as well. I quoted from the debate directly. No sense in denying it.
I mean, how else do you think that would work? When they show up at people's houses, do you think they're just going to take everyone's word for it when they say "Nope, no illegal immigrants here"? Is that how you really think law enforcement works?
Police knock on door
Homeowner answers, "Yes? Can I help you?"
Police, "Do you have any illegal drugs in the house?"
Homeowner, "Nope".
Police, "Okay, that's good enough for us. Have a nice day!"