I object to using the notion of a "6X difference in murderer density" among Black men as a reason why police are justified in racial profiling.

But I also object to the extremely smug and faux-engineer-rationality of "This does not appear to be racism [...] It looks more like math."

If we're expecting Uncle Bob to be just some guy on Twitter I would write him off as a simple fool. If we're expecting Uncle Bob to be a thought leader in a consequential professional field requiring deep analysis and sound judgement, that's something else.