Disco was born from historically black musical genres, and all of the best disco artists were black. I blame Saturday Night Fever and the Bee Gees in general for your viewpoint. this. dance music, especially disco, was "music for [expletive]" in the eyes of the public at that time and all the way up until the late 2000s/early 2010s. there's a deeper conversation about EDM/dubstep (or, at the very least, what america terms "dubstep") masculinizing dance music for heterosexual white dudes that i can get into. also, if you want a REALLY good book about the history of dance music/dj culture, you can't go wrong with last night a dj saved my life: https://www.amazon.com/Last-Night-DJ-Saved-Life/dp/0802146104 deep insight about the history of alan freed, soul music, northern soul, hip-hop, disco, house music, techno, jungle/drum and bass: everything is connected.