yes, the celebs posted are all PS'd barbies but that doesn't mean there aren't fair-skinned, light-eyed and blonde turkish people.
i do agree with chilly that the fair skin and light eyes seems to be idealised more than the more common dark eyes and hair, but i've travelled to turkey and seen people of every colour imaginable. it's incredibly diverse. and judging from the turkish diplomats i knew working in geneva, i'd say about half of them were dark haired and dark eyed, some had very dark hair and very light skin and sometimes light eyes, and then there were some blondes with light eyes. no button noses though, not necessarily large noses but not tiny little pig noses either. the woman i was close friends with had light brown hair, very fair skin and the most amazing green eyes i've ever seen, and her daughter (with her turkish husband) had light blonde hair and blue eyes.
turkey is very diverse. i think maybe what happens is that people form an opinion based on the turkish migrants they see in europe, who do tend to have dark hair and eyes.
the same thing happens with latin america. yes, the majority are dark skinned, dark haired and have typically 'latino' looks, but there are also some very fair-skinned, light haired people that no one would ever guess were central or south american. it's a big mix and there was also a lot of northern european migration to latin america.