You linked to a section about outlawing dancing... over 110 years ago.

Something tells me the troubles in the Tenderloin today are not related.

Not sure what connection you're trying to draw; Terrific Street was far north of where the Tenderloin is.

(Thank you for the link, though; I had never heard of Terrific Street, and I'm always curious to learn something new about the city's history.)

Terrific Street is nowhere near Tenderloin.