You mean "to the right of the Democratic party". It is not in fact the case that black voters lean to the right of the median in US politics.
https://www.pewforum.org/fact-sheet/changing-attitudes-on-ga...
https://www.pewsocialtrends.org/2017/05/18/2-public-views-on...
The other issues, yeah, you're right. I don't really consider taxes a social issue, but I realized I forgot about gun control.
As I point out, with a source, in another subthread, Blacks are more supportive of abortion than the nation as a whole, and second only to Asians. https://news.ycombinator.com/item?id=23936024
Even in your ancient (5 years after Roe!) piece, while Blacks were less supportive of abortion than average, they were also becoming supportive more rapidly than other groups. 40+ years later, that faster change has flipped the starting positions.