I'm not sure those are directly comparable. For YouTube you are not contributing to Joe Rogan unless you watch his videos and add views/popularity/ad revenue. Spotify, however, signed a separate contract that (AFAIK) is unrelated to listening count. In that sense any Spotify subscription has paid into the money Rogan gets, which isn't the same on YouTube.

He's still on YouTube btw, so still making money off the YouTube platform and gaining listeners/distribution from there.

Also, there's far worse people than Joe Rogan who make a full living off YouTube, so yeah just completely ideologically inconsistent if someone is going to reject Spotify because of Rogan and still use YouTube.