Kurds are mostly Sunni but Iranians are mostly Shia. They are not allies, except temporarily against common enemy ISIS.
US invested 1 trillion dollars in building new democratic Iraq. They don't want to conceive a defeat in this goal. US wanted a strong Iraq to counter act against powerful Iran. US bureaucrats can't admit that one strong Iraq is over. It has nothing to do with pleasing Arabs.[/QUOTE
About 10 million Kurds live in Iran. Nobody is talking about them having their own state. When you think that 250 000 slavisized Albanians that call themselves Montenegrins have a state, and 10 mill Kurds in Iran, or another 10 mill Kurds in Turkey, or 7 Mill Kurds in Iraq, or 2 million Kurds in Syria do not have a state, its kind of crazy. They do need a state. But the minute their state is created you will have Iraq, Iran, Syria, Turkey wanting to destroy them. So this could also be an obstacle for the US to recognize a Kurdish state. If US recognizes such a state it has to defend it. But countries against a Kurdish state have a combined population of 250 million people,