Considering we've had a network of old rich white men in "showbiz" running around playing with kiddies, raping women, and men and playing with corpses.... its funny anyone could either suggest its always ethics, that a once great nation is becoming worse or that immigration is bad because of this.
I'll give you a hint, it was a white family that took a mans disability income, while abusing him in their house then murdering him, and white guys that have been abusing people for decades upon decades, and before that, people doing all manor of unspeakable things but getting away with it.
In general, we've had horrible evil people living completely undetected in society since society began, Great Britain, wasn't, we've always had evil people here, people have always been greedy, the rich have been living off the poor since long before anyone coined the term capitalism, classes, taxes, poor people, the way this country behaves has been appauling for millenia, and doesn't look likely to change.
There are plenty of British born white men raping/abusing women/men or all ages, ethnicity, immigration, yeah, its all down to foreign people.
These people are scum, nothing short, but so are huge numbers of people who were born and bred here.