I used to run a StopTurkey blog aimed at blocking Turkey's bid to join the European Union. Later, I decided to integrate my Turkish coverage into this blog. One of the ideas I explored on that other blog, though, was that Erdogan didn't really want to join the European Union. He had a vision of Turkish greatness as a Middle Eastern power, a kind of recreated Ottoman empire, in which being just another EU member formed no part. According to this theory, he was just going through the motions with his EU application, never expected it to see fruition and never wanted it to; but because expectations about it had been built up in the population over decades, he couldn't just unilaterally bring it to an end. Instead, he needed the EU to do it for him.
So, according to this interpretation, Turkey takes outrageous and provocative actions to try and force the EU into killing off its application. Because the European leaders are so weak, however, rather than be provoked, they just submit to outrage after outrage, in turn forcing Turkey to become ever more obstreperous to get the reaction desired. I was sceptical of this theory initially, but looking at the Turkish government's every more outlandish behaviour, you really have to wonder whether it has some merit. EU leaders are so weak, though, and so used to taking orders from the Americans, who are big supporters of Turkey's application, that you have to question whether there is any amount of outrageous conduct "up with which they will not put".