I don't accept it. You don't look at it over a short period of time. You look at it over a generation of longer. Of course very poor people coming here might take more than they contribute at first, those same immigrants tend to work incredibly hard, they've taken a decision to leave their country and move to someone else to better their life. If they were lazy bums they wouldn't have got it together enough to uproot their life and move.
As tragic as the sexual grooming cases were/are they aren't the norm. They are a tiny minority of people. They should be punished to the full extent of the law, if they aren't British citizens then deport them when their sentence is complete. You are attempting to tar a whole section of society with a for the actions of a few.
TBH I don't know why I bother, you and others in here are so far down this road you aren't ever coming back.