The strategy of having the Iraqi Kurds lead the charge, figuratively and seemingly physically, has some enourmous hurdles.
I think this CNN segment hits the nail on the head.
The Kurds are at best 10% of Iran's population. When the US last exploited them in Syria we had to provide them constant air patrols and special forces support for two years and the US ultimately betrayed the Syrian Kurds.
It's hard to imagine Iraqi Kurds having a different go of it