> I would guess that awareness of the Tuskegee Experiment and black history more generally is greater among those with higher education than those with lower education. If this guess is right, then knowledge of historical racist medical abuses is actually strongly correlated with getting the vaccine.

This correlation appears meaningless in light of the previous paragraph.

> As with the population in general and every other racial group, black vaccination rates climb in lockstep with educational attainment.

Unless the education/vaccination curve has a different shape, then it would seem that the correlation is unrelated to awareness of the Tuskegee Experiment. The conclusion seems to acknowledge that the two are not causally linked. But then why include the correlation from the first quote above?