Miss conception of the century, probably.
Arabs were living in the desert so they didn’t have the soil to grow wheat to make them able to produce flour or they had no access coffee plants or anything like that.
They are fisherman and their cuisine was heavily relying on that.
Even grilled items or other dishes (so called kebabs and mezes) heavily associated with them simply products of Levantine/eastern Mediterranean (Lebanon, Syria etc.) cuisine.
Coffee has been discovered by Ottomans, first coffee shop in the world opened 1555 at Istanbul, even though Europeans has became aware of the coffee at the tents of retreating Ottoman soldiers after attempts of capturing Vienna.
Little travel or little reading may help.
Don't confuse them with the facts for haters will always go out of their way to find reasons to continue the hate.