None really there is at least a couple of songs from every genre that's good to me. My iTunes has like every Genre you can name I even like classical and opera and Arabic pop. I don't discriminate when it comes to music.
K-pop seems like a whole different genre to Westerners because their instrumentals are so different and also the whole concept of girl and boy bands is so popular there. It just feels like a different genre.
K-pop is considered a genre, musically? From what I've heard, it's regular pop music except that they aren't in English. Not liking music you don't understand is sort of natural I guess