All your favorite pop songs are really descendants of Jamaican dancehall

I'm no expert in this, but I was genuinely interested in this thorough explanation of how Rihanna's latest sing, "Work", is incorrectly categorized as "Tropical House". I didn't even know Tropical House was a genre so that really goes to show just how clueless I am. Dancehall, on the other hand, I do know of, and it seems Rihanna's music and lots of other popular music (even Justin Bieber's!) could more accurately be defined as dancehall.