The pope represents only the failure of Christianity in the denominational sustainability of Roman Catholicism. For Christianity to be a light among men, it cannot be divided within itself into a hundred separate sustainable brands, as it is.
In showing forth the 'light of Christ', or purporting to, we witness again that strange anomaly that to all Christians, divided as they are, there is an implied unity among them when facing the non-Christian world.
Meanwhile, the non-Christian world, including that of Islam, looks at Christianity, and sees its divisions for what they are, discounting it as a serious option for faith.
A Muslim or Hindu can rightfully say, "OK, suppose I believed in Jesus as the sole revelation of God, then tell me which form of Christianity must I assume to live my faith? I am more truthfully disposed in retaining my belief, to count it as a denomination, equally, along with the Atheists and the Agnostics, the homosexuals, of humanity's claim to the truth, which is what Christ claims, as do all the brands of Christianity."
