And England in the Dark Ages, including savage Norse raiders whose bloody gods promised them victory. But he does. It's a historical fact that the monk wins the argument. I won't go into the theology further here. But I will insist on the historical fact that it put a quick, final end to polytheism.
Christians can ascribe it to divine intervention.
For non-believers it's not so simple. If they wish to call Christianity illogical, they must explain why there aren't dozens of similar faiths. But the alternative is to say that it wasn't foolish, that Peter, Benedict and Luther aren't phantasms in a mist, and that this business about a dead Jewish carpenter satisfied intellects like Aquinas and Augustine, converted Norse raiders and C.S. Lewis, and vanquished Nero and Stalin. True, it has at times been carried on the point of a sword. But only after converting the swordsman.