And what makes you think Turkish leadership wants to keep it's "western style government"? Turkey has been trending Islamic for some time now. Turkey has been Islamic for 1200 years. Western for maybe 60 years.
“And what makes you think Turkish leadership wants to keep it’s “western style government”?”
Certainly the people who have gained power within the framework of the government will want to keep it. The alternative is to enter the very competitive Imam market and gain followers. The Imam with the most followers speaks for the “country” or in this case, the Caliphate. In theory there will be a Caliph, which will be like an emperor or king. But that position will trade off between assassins on a regular basis until one gets powerful enough to kill all the rivals. The Muslim ideal of governance is inherently unstable.
The ordinary people only want Isis or a Caliphate if they have rocks in their heads. (In which case, the black-clad fighters will chop their heads off and shake them until the rocks fall out. But it has been my experience that “the people” don’t know what they want until they get what they wanted last time and decided they don’t like it. By which time it’s too late.)