By that logic Israeli, (which you call a nationality) isnt even an ethnic group or nationality. So your argument basically sucks Suave. Lets see Isrealis are Russian, German, Polish, Ethiopian, Mexican, Dutch, British, Czech and so on and so on.......
And yes the Palestenians are now a nationality, no matter huw much you Palestine haters don't want to admit it. They have just as much cause to be called that as does any American. Or is that not a Nationality.