How is screamo considered music and an art?

quite simply, it sucks. its a dumb *** screaming into a microphone. i mean really. i listen to Black Sabbath(Ozzy and Dio only). Both Ozzy and Dio's solo career, Danzig, The Misfits, Bob Dylan, Boston, the Ramones, some KISS and AC/DC and Heart. So all the bands i listen to (except KISS) have actual musical talent. Thank you.