There are many people inside and outside Turkey who worry about the drift away from the secular state, which grew out of the ashes of the Ottoman Empire, and which is now threatened by the Islamist leanings of the current Turkish government. However Turkey is a democracy, has chosen its government in fair elections and to attempt to overthrow it by force is clearly unlawful. It seems that a badly organised coup has been put down by the authorities without much trouble.
However this leads to something of a worry for the West. Turkey is a member of NATO, but would not have been without the very secularism which the government tries to undermine. Likewise there would be no discussions about joining the EU, however prolonged, if at the time they started years back the current state of the political climate in Turkey had been foreseen. Clearly Turkey is a source of profound instability through opposing ideological and religious forces.
This is not a cause for complacency or reason for the West to pretend it is not happening. Democracies where coups happen are fragile and need to be supported. This will not be achieved by turning a blind eye. Instead demands should become firm. Turkey must reaffirm the secular principles upon which its modern state is founded and restore the individual freedoms inherent in that structure, including freedom of the media. Further it must reach a peace settlement with the Kurds which allows the foundation of an independent Kurdistan. Not only must these demands be an absolute requirement of any discussions at all about joining the EU over whatever time span; they must also be conditions for its continued membership of NATO.