Marilyn Manson grew up in a Christian family. He attended a Christian school. As a boy he went after the music his church, his parents, and his school told not to buy, music like Black Sabbath.
Now he professes to be a member of the church of satan, and his shows are fully of hate towards the church and God.
He calls it art. But the music he releases has been linked to horrific murders and acts of violence.
As the church protests at Manson, it serves only to promote him and his music. If the church gained an anointing to deal with the heavy demonic spirits controlling Manson they would be really helping their children.