You're right, they wouldn't screech about immigrants, they'd screech about Non-Citizens. Who all happen to be a certain skin color or ethnicity for some reason. Remember that some official has to sign off on your Citizenry Service. Guess who is going to be judged more harshly?
And residents have every right and protection as a citizen
History is extremely plain. If a group does not have concrete representation in the political process, their rights are trampled - or at best overlooked. Residents would extremely quickly NOT have the same rights. What about this is hard to understand?
Look, bud, what you're talking about is literally the goal of facism. Don't score an own goal for them, yah?
Or maybe we could rip all the car sewers out and put a nice park in instead. It would make high density housing a lot nicer, yah?