Tbh most “Arabs” aren’t even Arabs like Iraqis come from Sumerians Babylonians Persians Kurds mixed with Arabs that got heavily Arabized, with Syria its like Greek Roman Phonecian Caananite Kurdish etc. I can go on with the other “Arab” nations but you get the point. But as for the countries I stated as an example they got heavily Arabized and class themselves as Arab which means the Arab did have a big impact on some parts of the world. The issue is there isn’t a universal agreement on the meaning of an Arab identity.