“in the 1800s, up to 75% of the South was Scotch, Scotch-Irish. U.S. Census data between 1800 and 1860 puts the Black population of the South at between 35 and 36.8%. I suppose if you didn’t count blacks as people, then maybe the 75% figure may be correct.
It was written by a black man.
I suspect that you have an exaggerated conception of how many slaves there were.