Interestingly I just struck a conversation with my taxi driver coming back home from JFK. He's from Turkey, and we became friends over the brief ride. He spends a few months in the US working as a taxi driver, and then goes back to Turkey where he has a house in Malatya (he claims the best Apricots come from there) and an apartment in Istanbul. He invited me to stay with him when I come to Turkey (possibly the only place on my bucket list).
I actually asked him what he thought about Erdoğan, I thought it might be interesting to hear from someone who's center of life isn't in urban Istanbul (apparently Erdoğan's base isn't with the secular base that lives in Istanbul, but rather from the countryside). He said he thinks Erdoğan is bad. When I inquired about good things he has done for Turkey, he said that for the first eight years he was good, but then he started to concentrate too much power in his and his family's hands.
As for antisemitism in Turkey, he said (which is what my impression is) that the people of Turkey are friendly with no widespread antisemitism. A lot of the noise one hears is just politics and political rhetoric.