Perhaps certain vaccines were shipped to the black communities, and this caused people to become diabetic and at the same time lose immunity to the SARS2 Coronavirus.

It's easy to confuse the cause and the result of something. Do motorcycle helmets reduce deaths by half? Or do riders who volunteer to wear helmits tend more safety conscious riders who don't get in to accidents as much, and are less likely to die whether or not they wear a helmet?

So instead of people with diabetes being susceptible to the SARS2 coronavirus, perhaps those who are susceptible to the SARS2 virus also tend to have diabetes? Or really both conditions are actually caused by a 3rd thing, a vaccine that may have been given over 20 years ago.