Modern mainstream music is absolutely not just hip hop. There are more genres and broad access to them than ever before. And ironically, the aural synthwave aesthetic from the 80s has come back into vogue in pop with the likes of The Weeknd, Dua Lipa, Bleachers, 5SOS, etc. And it’s not like Daft Punk has become any less relevant.
The idea that hip hop has some sort of monopoly on popular music nowadays is laughable to me. Especially when you’ve got the whitest bread Shawn Mendes, Billie Eilish, Harry Styles, or Taylor Swift topping charts. If anything, things have dominantly gotten very alternative. Even the rap scene has trended in that direction with production moving with the influence of Ludwig Gorranson’s Gambino work.
Hip hop as a whole isn’t even inherently bad. I’m sure there’s stuff within that vast umbrella that you could probably like.