You are right about that, there is nothing to defend islam and koran. So you have to try to divert attention from islam and koran to Christianity.<quoted text>
There is nothing to defend Qur'aan and Isalm.
It is Christianity that has to defend her absurdities. I have not seen any Christian defending Christianity well. They know that they can't.
So the koran does not say the spirit troubling mohammad was Gabriel? What makes you think it is Gabriel?