Good Evining , I would like to know why the USA government denies Kurds rights , they suffered enough for centuries .

I wonder why the USA congres denies the rights of Kurds while the USA government regards itself to be the defender of human rights all over the world and claims equity of all humans .The kurds suffered enough to have their own state .All successive governments of Iraq ( from king Gazi and Faisal to Sadam Hussein ) fought them destroyed their towns,villages , cities , bombarded by Internationally forbidden chemical weapons , committed mascaras against them , they had no rights even to employ or name their children with Kurdish names .In libration of Iraq .The Kurds helped the USA forces and supported them with the maximum of backing they could to the extent no any US soldier even killed or wounded .All this and now the US goverment deny them to have their own independent state .