In this way,you are really an agnostic…and so is OP. Nothing wrong with it.
Even religious people go in to questioning very basic religious ideas time after time.
To answer the** red **bold part, they really did not create religion.
Even an agnostic or atheist, let alone a religious person could not come up with the answer how one person (the prophet) could make up verses of Quran based on the background he had.
Non-muslims say he (the prophet) had seizures (Mirgi) during which he uttered these verses…but is that really possible?
Ever heard of anyone utter these kind of words or even close to them during the attack of seizure?