As I said, you may want to try Gardening. McWhorter does not "sneak" "race" into Linguistics. Accepted and less-accepted dialects, including Pidgins, Creoles, and other variations used by "othered" peoples are a huge topic in Linguistics. You wouldn't be attempting to press your case with one weak example, would you? (Let me answer that for you; yes, you would.)

You have ignored my suggestions for Gardening, the History of Technology, not to mention Programming, Business, Coding, Motherhood, Poetry, and the like. Broaden your horizons, Hazlit.