I actually don’t think much about the content of college music theory curricula. It ranks well behind poverty, environmental destruction, and police and governmental abuses on my list of social problems. But I do think that Neely’s indictment of “music theory” as “white supremacist” is absurd and misleading.
Social class and related market forces are far more significant than white supremacy in driving music theory college curricula. Students in the US can study nearly any type of music, if they choose the appropriate school. This has been the case for well over a half century.
University curricula are responsive to market demand, albeit in a relatively inelastic way. The hegemony of Euro classical is explained by the preferences of the elite classes. As college became more accessible to the middle classes, the curricula gradually expanded beyond the elites’ preferences, and continue to do so.
The lingering racial effects are real, and understandably upsetting to people who value the overlooked musicians. But the racial consequences are mostly epiphenomenal to lingering class effects—regardless of Schenker’s comments about the French army’s employment of African soldiers.
Re Schenker and Ewell’s take on him, a far more cogent and balanced appraisal of Schenker’s ideology and its relationship to his theorizing can be found here:
https://www.jstor.org/stable/41054326