Hmmmmmmm.....I don't think that is the problem, but it may be a point that is debated by academics in the region.
Turkey has formed a government that is almost a Islamic based parliamentary rubber stamp. It runs everything through a Islamic filter, and this alone should be worrisome to Europe and Turkish participation in the Euro community.
I think Europe is just wishful thinking, as they seem to do as a matter of policy.
This government is a democratic looking government but functions as a theocracy, from what I can decipher. I base this on the window we got when they denied access to their territory. There was much opposition to the decision, but it was squashed like a bug. It looked like everyone opposed was threatened and silenced.
I think Turkey is a lie. And i think they are getting away with it, but occasionally do something that gets attention, as we see here.
It almost looks like a Iranian proxy.....but I'm not familiar enough with the specifics to make that call. I feel like the wool has been pulled over the eyes of Europe and the West, in regard to this Islamic Republic in Democratic clothing.
Actually, despite the somewhat Islamic party currently in power (AKP), Turkey's system of government is still far from a theocracy. Their constitution has strict laws upholding secularism and the separation of religion and state (in some instances even more strict than the U.S. Constitution) - and the AKP cannot override these no matter what they do.
For example, there is a strict ban on women wearing headscarves in all schools, universities, government buildings; no religious schooling is allowed before high school level; there's no laws against divorce or homosexuality, no law against women going topless in public beaches, (and they do so); thousands of Israeli tourists visit each year, etc. Now the current Prime Minister, Erdogan, did actually try to make adultery illegal and limit alcohol sales, but quickly withdrew those proposals due to enormous public outcry.
As for denying access to the 4th ID into Iraq, ironically, Erdogan actually supported the U.S. It came down to a very close vote, but it was out of concern for increased Kurdish nationalism/terrorism, and from EU pressure that the Parliament couldn't muster up the last few votes needed. Of course the Turkish govt. is nowhere near as liberal as Western Europe and won't be anytime soon, but having been to Turkey, it's still a far cry from Iran and much of the Arab world.