It would indeed by interesting to see the statistics comparing white/black i.e. African and Caribbean, and also black UK/ black Jamaican. I'm not necessarily saying the black UK population has more single mothers than white - I don't know - but it does seem that those black children may suffer more adversely from not having a father figure/figure of authority in their lives, than white children. When immigrants came over from the W.I. in the 1950's they were mostly conservative, god-fearing family units. It may be that the changes to liberalism in the 1960's and 1970's caused more problems in the black community than the white community.
Slavery - I'm going to need a lot more convincing that something that happened to other people two centuries ago is still impacting people today, other than as an excuse for victimhood. I won't make the gruesome comparison of which is worst, slavery or the Holocaust where 6 million Jewish people were deliberately put to death, but if the slavery theory works to affect the black community, how is it that the Jewish community have put the horrors on Continental Europe (within living memory of some) behind them? Those Jewish victims that survived and their descendants will talk about what happened - it must not be forgotten - but they don't use it as an excuse for underachievement. They've pushed on, and on the whole, have made great successes with their lives.
I accept your point about inheriting Ugandan etc Asian business people. But, as Stortford has said, many Asians came straight to the UK from Pakistan, India, Sri Lanka etc and have started successful businesses. I love it when I see a successful Black Brit in any field - of course, we see it in sport, but I'd like to see more businesses opening up run by Black Brits. And I'd like to see less victimhood. Where there are racist cops, they have to be weeded out and got rid of. And I want to see the police use body cameras at all times and not be able to switch them off unilaterally. But I do have sympathy with the police too, because we know there are a lot of knives out there, and the police have to act. It was a joke but true that in days past, if white criminals got nabbed, there was an element of "I'll come quietly". Where there have been black deaths in custody, while I do not absolve the police of responsibility if and when it is due, there does seem to be a tendency for black suspects to question authority and fight the police physically. Rayshard Brooks was a case in point. Rather than go down to the station with the cops and sort stuff out, he decides to take them on in a fight, steals a taser and fires it at one of them. What happened next was totally unjustified, and one of the cops has been charged with murder. But the fact is, if Brooks had gone quietly, he would be alive and a free man today.