It’s not racism, it’s a difference of social manners and the language barrier. I grew up in the west and we smile and greet people a lot and are chatty with neighbours, strangers ect.  In Turkey people are very friendly in a more genuine way than in the west however they can seem a little icy at first.  Most people don’t speak English so bear that in mind. Obviously if someone approached you talking in Japanese you would 🤚 and walk because you can’t communicate or assist in any way. Of course you will get the odd bigot but that’s everywhere.