Look, there are many things that hijab represents in the Middle East, and a lot of them are good. We respect Muslims. We don't think Islam is a bad religion, though everyone has many grievances with the political wing of Islam that we hear so much about in the Western media. But that is not the point. The point is that a hijab is a religious dress code. It is what is required to be worn. In the Middle East, it is required to be worn by women in the presence of men other than their immediate family. It covers the woman and prevents her from being objectified.
It also, obviously, represents a culture. But, as a fetish, it can also represent something else entirely. The porn movies here show naked hotties in hijabs getting blasted in the face with cum, getting fucked in the pussy, ass, and mouth. Some are even double penetrated. There are even lesbian hijab porn scenes, where the Muslim sluts take each other's hijabs off, reveal their pretty little faces and then lick each other's pussies. The fantastic sex content does not disrespect any culture or religion, it only seeks to turn on people who are turned on by the sight of a girl in a hijab.
There are also scenes that show girls in burkas getting fucked by soldiers, where the burka is removed, and the girl has a look of bliss on her face as the soldiers pound her pussy with their big dicks. Sometimes they even have two cocks inside of the same pussy, or have her ass stuffed full of a big hard dick. They dress in traditional clothes, but their sexual appetites are far from typical.