ISIS and Al Qaeda are practicing the original 7th Century Koran/Islam which definitely teaches “Kill any who fail to convert to Islam.” They do not recognize any writings that are done after the Koran of the early 600s as being valid.
And I cannot believe that the God who is the Father of Jesus would so radically change what He sent Jesus here to teach us and call us to Him would change his mind and give a new message to Mohammed. Thus I do not accept “Allah” as being the same God whom we as Christians and Jews worship.
I agree with your post # 7.
The essence of the Islamic message is, “Convert, submit, or die.”
The key word is “reasonable”. One can use reason to converse with, and hopefully persuade, another reasonable person.
With the unreasonable, other methods are necessary, just to preserve one’s own skin.