So many like you - it is in your head this largely fictitious left with counter arguments that practically no one is making. Makes you feel better about your argument though. Of course you will find some nutters online but don’t think I know anyone who doesn’t think immigration is problem. That is not the same as demonising all immigrants though.
No easy solution but reaping consequences of so many public services having been decimated ( from austerity) thanks to the gambling finance sector lining their own pockets before 2008. There should be more police, trading standards, benefit investigators etc. and there was money for it, and still is, to ensure these gangs aren’t attracted to basically set up organised crime, claim benefits etc. Many know they can operate with impunity and exploit our liberal legislation so it is hugely attractive- it shouldn’t be.
Brexit has compounded the issue too which wasn’t what the leave voters hoped for