Where am I levelling accusationgs at a scholar?

A person can't just say "dhul qarnayn isn't alexander". Then who is he? How come so many scholars believe dhul qarnayn is alexander? How come when I used to go to Khutbahs in Saudi Arabia they all say he's Alexander? The greatest evidence is the name "dhul qarnayn" it means two-horned, as in the ruler of the two halve, east and west. That imagery is only associated with Alexander, by the medievel greeks, persians and arabs too.

It just seems that in the 20th century we now conveniently avoid this rather embarrassing story.