Is this true? Do you live in Turkey or do you know many people from there in person? Because I've visited Turkey two times, and those were very different regions of the country, and now I can't imagine that some of the people I talk to might support ISIS. They all were very nice and intelligent people. I love this country and the information that millions of Turkish people support ISIS puts me on the verge of cognitive dissonance.
There are all kinds of people in Turkey. It has 78 million population. The West and the East is completely different. Western cities are more modern, only if they are near the sea. Other cities are full of garbage, ignorant people. And of course they are supporting ISIS and AKP.