Turkey has been blocked from EU entry for 40 years, any EU state can and has veto entry. Explain how Turkey is EVER going to join the EU, its impossible.
I don't feel safe to use names etc but I don't imagine that those in power at the moment want to be part of the EU at all - this seems to me to be the most significant barrier. They talk about it a bit but there's no enthusiasm for any of the reforms that are needed - especially the ones concerning the press etc.