I have been told my question asking about facial features and nationality is unsuitable. This is after I did extensive cleaning up and editing.
In the comments there is no question that the claim is notable. Rather there seems to be an issue that the question is to vague or not properly answerable.
Note: After extensive editing I flagged the question for reevaluation. Sklivvz gave his reasons he thought the question remained unacceptable, however the reasons he gave are not the reason the question was closed, nor did he close the question.
The reason given that the question remains unacceptable is, to quote:
The claim is really a blurry concept and thus, impossible to answer with facts/too broad/too vague.
To quote the example given:
The problem is that some Turkish people will look English because they are immigrants. And some English people will look Turkish because they are immigrants.
I don't understand how this makes my question problematic. I went to great lengths to clarify that for the claim to be true only a subset of the population would have to have a distinct look.
That immigrants may not have a distinct look in common with a subset of the population doesn't matter. As long as a subset of the population who have been there for at least a few generations have distinct look unique to that region, the claim is true. It would be up the the people answering to demonstrate that.
If the claim is true then should it not be given a chance to be answered. Claiming the question is impossible to answer with facts and then closing the question eliminates any possibility of an answer based on facts. There is at least one person in the comments who stated they would like to answer the question (curiously that comment has been deleted).
I think this is an example of a question being closed unnecessarily, which only harms the site.