You do realize Tuskegee was a solitary experiment in the city of Tuskegee, not a global conspiracy that would have to include 100's of Thousands if not millions of doctors, nurses, medical specialist, scientists, lawyers, ambulance workers, medical administrators, researchers, admitting clerks, lab technicians, surgical technicians and the man the mops the hall. One of these motherfuckers is gonna rat out the bogus experiment.
Tuskegee probably had a dozen or so bad actors all white, maybe more, but I doubt he got over a couple hundred folks that were aware at that time. Is it possible? Sure we could be in for a grand experiment, but hell that can happen without a pandemic. You go ahead and keep walking around thinking shit sweet until you get cough that just won't quit.