Why can't you live and let live when it comes to something so personal? Believe what you want, it's wrong to mock their GOD, and that goes for any faith.
Christians and patrons of other faiths believe they are called to spread the word about their faith. But you seem to just want to dash anyones hope for anything spiritual, and in the worst way. You really seem to be dedicated to it. Your like a grown man wanting to tell 3 yr olds there's no Santa Claus.
Can I ask you a question? What did GOD or the belief in GOD ever do to harm you?