you only need to handle immigration if you have immigration. problem is kinda solved if you don't have immigration or at least "immigration that cause problems"
i know many immigrant who don't pose any problem withou need for "handling" or "supervision"
Hopefully the successor will clean the mess still left realted to the Pakistani rape gangs and police collusion.
The entire UK society seem to have been trying to ignore the issue rather than solve the root of it (which is not necessarily immigration itself but political correctness)