Why are so many people in the West obsessed with Arabs and their civilisation?

When you are on the internet, especially in racist forums, you notice that a lot of people are totally fascinated by the history of the ancient Middle-East and a large part of them tend to be revisionist by rewriting history and denying the Arab peoples their legacy: Sumer, yro-Babylonia, ancient Egypt, Canaan-Phoenicia, Carthage, and so on. Although most archeologists, historians, and anthropologists, ume all those great civilisations were founded by the direct forefathers of the modern Arabic-speaking populations of Southwestern Asia and North-Africa, it doesn't stop many ignorant people from contradicting sciences by pretending Arabs stole this heritage from other people. Is this jealous and intellectual dishonesty, or a profound ignorance due to an irrational hatred?