Answer:
Opposition from all these countries.
Step-by-step explanation:
The objective of the Kurdish people is to establish their own state, somewhere in the territory marked. However this is bitterly opposed by countries such as Turkey and Iraq.
They are also victims of geo-political politics. Western countries who need the support of Turkey strategically and who supported Saddam Hussein for decades as a bulwark against Iran will therefore not support an independent Kurdish state.
Indeed when Saddam used chemical weapons against the Kurds he acquired them from the West.