The typical way to describe people from a place is to use the demonym. An example is Californian. "People of California" sounds like something a pol would say. Or a poet or something. I think it's very notable that - as far as I know - the West Bank has no demonym. Everybody - including reporters - is forced to use a clumsy mouthful of syllables like "Palestinians in the West Bank". I'm not a linguist but it seems really weird to me that a simple demonym (West Bankers?) isn't used.

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Edit

A comment to me at another site

A significant number of them are officially refugees and therefore not Gazan.