Complex sentence: The album divided fans and critics into the two camps--a schizophrenic critical reaction that would remain with him until his death--some derided him as a washed-up teen idol, and others believed he would eventually make a resurgence in popularity.
Split into simpler sentences: The album divided fans and critics into the two camps, a schizophrenic critical reaction that would remain with him until his death. Some derided him as a washed-up teen idol, and others believed he would eventually make a resurgence in popularity.