Elton John says he would ban religion because it discriminates against gays. He says, "It turns people into really hateful lemmings and it's not really compassionate." I think he's talking about orthodox/fundamentalist versions of the three major monotheistic religions (Christianity, Judaism, and Islam); it would be hard to make the same argument against Jainism, Buddhism, or Zen. I don't know much about orthodox Judaism, but if he's talking about fundamentalist Christianity and Islam, he's right.
I don't know if I agree that religion should be banned--I think there should be freedom of religion.
But he's right about the hate--most hatred and intolerance comes from the fundamentalist versions of the three monotheistic religions.