The Bible speaks of false prophets. All you need to do is look at the life of Mohammed ---the murders he committed, the lust, sex-slaves, child rape -- to know he could not lead people to the true God, not even an impartial revelation of the true God. He claimed Jesus was only a prophet but proclaimed himself as a greater prophet. Mohammed was far closer to "Emmanual" aka David Mitchell of the Smart case than he could be to a true prophet, there to steer people away from the true one God. If Mohammed was alive today in America ---he'd have to in prison for the crime of child rape (a 6 year old) among many other things.
Fine. You know more about Mohammed than I do.
But this has nothing to do with the question of whether the God who is worshipped by Muslims is the God worshipped by Christians and Jews. The God of Abraham.
You say no. I say yes.