Instead of guaranteeing (enabling) perhaps both need to recognize them as a people needing a State. This is not the same situation as existed with the Balfour Declaration where both States were and still are enemies. The Kurds are Iranian, wanted by the Iranians, and Iran could use them for their military needs. So a conversation needs to be had between the two as to how such a scenario could work - Trump and Iran would not renege on an agreement and would provide the incentive for the Kurds to lead on.
Also, being a people without a State for so long leaves a society wanting and if desperate enough, they could make the mistake of agreeing to the wrong parties if, for any reason, they tire of the U.S. and Israel and want to strike out on their own. Certainly, that would be a bigger for them.
Instead of guaranteeing (enabling) perhaps both need to recognize them as a people needing a State. This is not the same situation as existed with the Balfour Declaration where both States were and still are enemies. The Kurds are Iranian, wanted by the Iranians, and Iran could use them for their military needs. So a conversation needs to be had between the two as to how such a scenario could work - Trump and Iran would not renege on an agreement and would provide the incentive for the Kurds to lead on.
Also, being a people without a State for so long leaves a society wanting and if desperate enough, they could make the mistake of agreeing to the wrong parties if, for any reason, they tire of the U.S. and Israel and want to strike out on their own. Certainly, that would be a bigger for them.