Keep in mind, that the Southern Baptist church literally exists because the Baptist convention started asking thorny questions concerning slavery and Christianity. In light of that discussion, the southern congregations broke off to form a convention that would welcome African slavery[1] and have white supremacy as a bedrock principle. Sure, there are plenty of blacks in the Southern Baptist denomination, but they attend black churches for the reasons you've noted.

https://en.wikipedia.org/wiki/Southern_Baptist_Convention#Di...