Yes, I see what you mean... However there is a counterargument that if Turkey supports a Kurdish state in Iraq (I mean actively), given that its economy will depend on a large part on Turkey, it might come to a general arrangement, by which it grants autonomy rights to its own Kurds (and possibly apologizes for "past mistakes") and reaches some sort of agreement with the Iraqi Kurds as per not supporting secessionism. In fact were Turkey to play it smart, in an ideal world it will have an active ally in its South and stop the Kurdish insurgency inside its borders.

This is all theoretical, mind you. The current mentality (and the interests noted above), I agree with you, guarantees that no such arrangement is possible - it's not even stateable by a Turkish politician without risking some sort of judicial adventure.

The road of excess leads to the palace of wisdom - William Blake