A man and his wife live in Siberia. Every day she nags him about his drinking and his terrible friends and how he never helps her around the house. It always ends with her yelling at him to go out and bring in some wood for the stove.
One day after the usual fight, the man gets to the woodpile and just keeps walking.
Twenty years later, he returns. He walks into the kitchen, sees his wife, and says, "I'm home!"
"Where's the wood?" she yells.
Same if inbreeding is practiced. So, the claim that for example, mid-easterners with their penchant for marrying cousins, or the Swiss with their insular village communities ..
For example, I don't think that (on average) the locals where I live are particularly beautiful in comparison to other countries, but a lot of foreigners seem to disagree with me.
Source?
I'll look for better (primary) sources when I'm not on my phone if I remember. I vaguely remember seeing a bunch of stuff about how humans naturally gravitate towards genetic diversity, unless there's some roadblock preventing it. I don't have a source offhand though so until or unless I find one, remember to add your salt :)
I understand where that comes from: it's a stereotypical generalisation, but Russian middle-aged men drink themselves to death. Large areas of Russian countryside operate on granny energy only.
So, the "supply" of women exceeds "demand" in Russia.
What puzzles me more is how UAE, Qatar and Kuwait have such a high male-to-female ratios. Is it because of large populations of foreign workers that are predominantly male?