I think a major issue with Turkey is that there is a large non-secular voting bloc. Historically, that has been kept in check by periodic coupes by the Kemalist military. However, Erdogan has succeeded in taming the military (as demonstrated vividly by the failed coupe). Thus, the non-secular voting bloc has escaped the historic check. I am afraid, Turkey will become less secular in the next few years. In addition, there is not much we can do externally, as evidenced by the latest referendum, Erdogan has the support of a majority of voters.
Well it seems the majority is not that big. He won by a small margin, while controlling all the media. If it had been a true free election, I bet he would have lost this referendum. And if you look at the demographics, people in cities voted against, countryside pro. Turkish people living abroad voted pro Erdogan. I bet most of those people came from the countryside in Turkey.
Bingo! It also seems that the quantity of secular bloc is lesser than that of the non-secular bloc. Apart from the military, Erdogan has also tamed the judicial system.
The majority of rural voters anyway. In the latest voting he had low support in major centres. His control of the media is key to controlling the public vote, especially in rural areas. So supporting the free press, and anti-censorship technology, is a great way to support democracy in Turkey.