You could take another social evil - suburban Friday/Saturday night violence caused by coked up / boozed up twenty-something's - all you need to do is watch a couple of episodes of 'Boozed Up Britain' to feel the hot prickles of shame as you see some lads arrested for peeing into litter bins, fighting in kebab shops, or girls flat on their backs with their skirts hiked up above their waists, to know that there are a whole host of social problems afflicting the country that no-one has a simple answer for.
Throughout the country, from the predominantly white Midlands/North East/Liverpool/Scotland to the predominantly black and Asian Leeds/Bradford/Birmingham/London, we're seeing social problems and crimes which straddle racial lines.
Yes - there ARE single parent families that bring up outstanding kids - but then again, the are also the Karen Matthews of this world...
What is more common? I could not say, but given the choice, I would prefer to be brought up by two parents - providing none of them were so thick as to think they could have me 'abducted'...
Going back to your comments - I would ask - how many children from upper middle class families who went to private school end up in gangs (ignoring Bryan Ferry's kids who seem to be twits of the highest order)?
The hideous truth is that if you have something to aspire to, and have parents who will invest their time in you and you live in an area where you are surrounded by opportunity, then you are likely to do well at school, go to university, secure a well paid job, move to a good area, have kids who go to agood school and the cycle begins again.
If you live amongst rubbish, then unfortunately, it's more than likely that you will inherit rubbish as a life outlook.
Just one last thing - if you look at the prison population in the UK, out of 1,000 inmates,how many do you think are from affluent middle class families, and how many do you think are from 'the lower orders' (to quote George VI).
It crosses racial lines - it always has.