It's one thing to be closed-minded, it's another thing to just actually really not like a genre. I've had tons and tons of exposure to country music and have *never* liked it. It's just not for me. I'm not saying that there aren't talented country artists, I just straight-up don't find the genre appealing. You can put all kinds of talent into it, I still won't like listening to it.
Also, not to be rude, but I never really can believe it when someone says they listen to all music. If you get into a conversation with pretty much anyone that claims that, you'll eventually find genres that doesn't appeal to them, they just don't really even count them. lol