Its long term position of obviously not wanting that a country where more than half the population backs up a dictatorship backed up by fundamentalist Islam joining us and let those people have total unrestrained access across all our borders?
Yup, we are really, really very happy that nobody was so mad as to let you in the EU... or else this that just happened (and in fact what has been happening the last decade backed by the majority of your population) would be a major danger to our existence.
This way we always have the option to just close even more our borders until you deal with this insanity that is going on in Turkey and then when in some medium term future you get back to a democracy and show good will towards respecting everyone's civil rights and liberties we can then resume talks again.