Brain drain is real. I left almost a decade ago, and in the intervening decade most my friends also left - Turkish people of this sort generally do very well in Silicon Valley, New York, London, Berlin, and in others.
Not that this is a bad thing. I don't see any reason for the great design & engineering talent in Istanbul to stay there, while the ruling government treats anybody who's not a part of their clientele (conservative, xenophobic, nationalist, authoritarian) like cockroaches. Considering they're only getting 51% even with the massive, massive practical broadcast power the ruling governments get, that's a lot of people.
So we vote. In the best way. With our feet.
Funnily enough, even Erdogan is realising that Turkey is losing a massive amount of talent on a month-to-month basis, in that it's been in a few of his speeches imploring people to come back lately. Apparently he realised when we're all gone, and when the construction / inflated real estate boom stops (which it did a few months ago, and the economy is in free fall right now), the only people who actually produce value are the people he did his best to alienate and scare out of the country. I believe his literal words in a national speech were: "Like, or leave" ("Ya sev, ya terket").
So we did, and I'm now paying my tax bill to the Internal Revenue Service of the United States, instead of Vergi Idaresi, and you know what? USA treats me with a lot more dignity and respect than Turkey ever did.
Turkey is going to starve (hopefully only figuratively) before it gets better, and I don't have a big problem with that. There's no teacher for authoritarians like it.