Well, I don't really hate it (at least not in the same way I hate pop music), but I just dislike it immensely. Although I must say I'm sort of intrigued by the uncompromising nature of early hardcore minimalism (e.g., Four Organs by Steve Reich or Music in Twelve Parts by Philip Glass and of course Lamonte Young's early stuff, which was actually influenced by Webernian serialism). Too bad that over the years, minimalism has developed in the direction of utterly uninteresting and conventional earcandy, despite its early potential of becoming an aesthetic that's actually interesting...
Philip Glass keeps producing the same excruciatingly simplistic, boring and mindnumbing garbage he's been churning out since Satyagraha, thereby turning his whole life into a piece of minimalism - not only does his music have minimal substance, as a composer he shows minimal progress and artistic development as well, repeating himself over and over again and not just in his music.
Reich's music suffers the same fate as Glass', albeit to a lesser degree. Like Glass, Reich reached his creative peak in the 1970s when he wrote Music for 18 musicians and sadly enough, he's never written anything as good and inspired since then. Some of his later pieces are pretty decent, though (Different Trains for instance), but not quite on the same level as 18. So on the whole, Reich hasn't showed much artistic development since the 1980s either.
And then there's John Adams, a clever craftsman, but nothing more than that. He knows how to steal from other composers and combine it all into one effective showpiece and that alone impresses some people, but not me. I think Adams' music is highly derivative, unoriginal, bombastic and not groundbreaking at all.