Her main audience is (white female) teens. And I think her material is pretty decent for a teen-oriented one. I really like her voice, it's very beautiful and her lyrics don't cause me any rejection, even if I can't always relate to it. Except for the last album, which disappointed me, but nevermind. I also really like the music videos for her songs.
She is really a very beautiful woman and a very good performer, I'd even say that the quality of performance has grown since Reputation. Eras tour is the ultimate form of entertainment, she gives her best and genuinely enjoys it. And her outfits are simply amazing, flawless in every detail.
As for the dancers, she is an Ally, therefore she gives jobs to representatives of minorities. And in general, it is not necessary to hire only those who fit your sexual preferences (although some do just that lol).