1. That rural whites do not display the same rates of crime that urban blacks display
Middle Tennessee and East Tennessee have some of the worst meth problems in the country. Outside of the Nashville region (which isn't where the meth epidemic is centered), the population is overwhelmingly white. You can open my small-country newspaper and read about the misdeeds of people--guess what, they're all white.
And that's just in Tennessee--I bet the rest of the rural South and Midwest are no better.
2. That, in fact, Asians in Asia - who, per capita, are significantly less wealthy than American blacks - do not display the same rates of crime
But everyone's poor there. Let's compare costs of living and such. And yes, I bet there's just as much crime in Asia as there is in the whiter parts of the US--what do you think the Triads are?
3. That the nature of many of the crimes committed disproportionately by blacks is not economic but violent or sexual
So why are mass shooters almost always white with the rest being Asian? Why are serial killers almost always white? Why is sex trafficking controlled by whites and Asians? Why is there so much domestic violence in the rural South and Midwest? Why are so many white supremacists violent criminals in addition to being all-around assholes? Why do neo-Nazi gangs roam Russian cities beating up and killing minorities? Why is there so much vandalism and property crimes in my 95% white county? Come to think of it, why are so many rapists white? Why are so many wannabe rapists like pick-up artist scumbags white?
4. That crimes of that nature also occur extremely often in Africa itself, more so than in nearly any other part of the world including some parts of the world currently embroiled in civil wars.
Mexico isn't a black nation. Ukraine isn't a black nation. India isn't a black nation. Honduras isn't a black nation. Iraq isn't a black nation.
Really, I don't think much of Africa is particularly violent compared to crime hotbeds, mainly because everyone's poor. On the other hand, we can note that crime seems to be highest in areas with huge income disparity, like South Africa, Venezuela, Brazil, Detroit...hmm, I think I'll go with poverty as the cause of black people committing more crime.