There once was an Arab civilization of some considerable achievement. My argument is that all that ceased with the ascendancy of islam within those countries. Even within our lifetimes, we’ve seen once beautiful and cultured Lebanon taken over by muslims and become a hell hole which good and decent people flee as soon as they have a chnace.
I have been looking for evidence - cannot find any. Everything the arabs claim, was plundered from the cultures they over-ran.