The Kurdish Constitution doesnt allow such stop, there is no mention of beeing allowed to form an Region within the Kurdistan Regional Goverment, but rather to annext and normalize the Nineveh Plains to the KRG.
Could you qote the article in the Kurdish Constitution that concerns that point ?
Moreover, it is an IRAQI federal question, it does not depend on KRG. If a referendum is organized in Niniveh area, people could express their choice : being integrated in KRG or staying in Iraq. They could ask a third choice of course, being a real autonomous area like Kurdistan Region, but it needs a serious organisation and good militias against Al Qaeda and Shi'a militias...
the KDP uses assyrian puppets to represent the Assyrians within the KRG and even try things within the Central Goverment in Baghdad.
The point is also that there is no Assyrian unity. Arabized christians from the South hate Kurds like the former Baathists they were. They don't even speak Syriac. Northern Chaldeans and Assyrians are closer to Kurds, because they are the same mountainers. Moreover, much Christian villages are still within the KRG, especially at the Turkish border, and they did not want to go in Nineveh. Other arabized Assyrians want to stay in Iraq, in Bagdad or other cities and hope to come back after the war. They don't care of Niniveh.
The "Assyrian puppets" in the KRG considered themselves as good Kurdistanî, the same with Kurdistani clerics. It is their own right. Much of them fought with Peshmergas. What did say the Patriarch when Saddam destroyed Christian places in Kurdistan ? They also consider Southern religious authorities like former Baathists or pro-Arabs.
Sarkis Aghajan, who is potrayed in Ishtar TV (kurdish chanale....or "kurdistani christan" chanel) to be the hero who builds houes,schools and churches for the Assyrians, but noone has ever elected this person to represent our voice
Not YOUR voice, but Kurdistani christians' voice.
Second think is, if the Kurdish Parties really want that Assyrians form their administrative area, why would they prevent the Assyrian efford to form an Police Force in Nineveh? It was approved by the Baghdad Goverment, but blocked by the Kurdish Politicans who form the council in Mosul (sunnits have boycotted the elections, thats why kurds are majority there).
Be sure that Kurds don't want Mosul. They gained it by accident, and they'll left willingly that crazy city. The trouble is the region of Sheikhan and Northern Mosul area, with Shabaks, Yezidis, Kurds, Christians. You are not alone. Even Niniveh area should be ruled by a council with representatives of everyone.
I don't know why and if the KRG blocked the Police Force in Niniveh. Perhaps they don't trust in their capacity, or they are afraid by Baathist and Al Qaeda infiltration. Currently police in Mosul is under pressure of terrorists and nit very efficient.
More over, Christians in Mosul are not united under the same aim. Some want to stay in Iraq, with Arabs (it was the case of this poor Mar Rahho), some want an independant area, some others want else thing, etc.
whenever KDP starts to work with ADM the only and really assyrian representive Group
Why it is the only and really Assyrian representative group ?
If the Kurds change their contitution so that on the paper it will be written "ASSYRIAN are allowed to form an autonomous area within thei Kurdish Regional Goverment", then there is no way anymore to be on fight witheachother, but rather work witheachother.
The constitution is still in preparation and not yet published I think. Moreover you ar enot logical. You don't want that Niniveh becomes a part of Kurdistan,but you want that Niniveh will be inscribed in Kurdish COnstitution. But for being absolutely independant from Kurds, you should make write your ASSYRIAN area in IRAQI constitution, not in another Federal region's one that not concern you.
In short, if Niniveh need Kurdish help, saety and support, it should accept Kurdish conditions. If Niniveh is an separated federal region, then Christians should express their wish in Baghdad.