Mostly.
Mostly? I'm not sure what that means. It is an either/or proposition. The Bible, written by Jews, and the Koran are incompatible. But anyway, God will not make you be reconciled to him. It is voluntary. If you want to go to hell, fine. This is established in our constitution's 1st amendment.
I just don't understand why your emphasis of incompatibility is solely towards Islam.
Islam requires that you convert or face the sword. How do you not understand?