It's all music, but why is Metal being lumped in with the rest of that garbage?
Unless your idea of metal begins and ends with crap like Linkin Park, Limp Bizkit and Slipknot, 2 out of 3 of which aren't even real metal and the other is borderline.
I listen to bands like Entombed, Opeth, Meshuggah, Sepultura, Death, Atheist, Dismember, Cannibal Corpse, Darkthrone, Emperor, Burzum, Carcass, Deicide, Dissection, Metallica, Megadeth, Slayer, etc. Yet Linkin Park is still my favourite band, and I really do enjoy Limp Bizkit and Slipknot. As for whether or not they are metal, well there is no standardized regulation and classification so it all depends on the individual.