There are hundreds of millions of believers in Islam. Does that make it true?
I would suggest that you read something after the Age of Enlightment once we found though science that many of our superstitious beliefs where just that. Try Thomas Paine’s “The Age of Reason.”
I have lived in Islamic culture. How about you? If not, then you have nothing to say. I know Muslims, who were my neighbors and friends. As I noted earlier, God will judge every person, and His judgment will be utterly just and beyond question.
During the so-called “Arab Spring” there was a Christian sister (nun) who was being chased down the street in Cairo (a place I have visited numerous times) by a murderous crowd. A Muslim woman ran out and grabbed her and brought her to the safety of her home. The God that I know and serve will have mercy on that woman, I have no doubt, because of the words of the Lord Jesus to His followers: “Behold, if anyone so much as gives you a cup of water, they shall not lose their reward.”