Redhead soup. See how different they look when they don't stand out? Then you've understood why they evolved in the first place. Evolution favors the one who catches potential mates' attention.

Countries that have had the most intense selective pressure, where the sex ratio is imbalanced, such as Estonia due to the long trips that male hunters took into the steppes, from where many did not come back, have the most balanced proportions, with almost equal proportions of brunettes, blondes and red-haired girls: