We need to separate out the insights the person brings from the person themselves.
I can’t stand Nikki Minaj’s “music”, but her latest overtures rightward i do like.
Now as to McWhorter - his insights into linguistics are really very good.
I understand your point, and it is well made,
A counterargument would be the ‘famed’ economist Paul Krugman, He certainly doesn’t separate out his ‘insights’ from who he is.
See, for example, his pronouncement this week.
God will hold all of us to account for our speech. Even Paul.
Judgment Day is coming.
‘Pod.