Blonde and red hair colors are going extinct.
No, they’re not. Genes hardly ever actually die out, and recessive genes, like the ones needed for blonde and red hair, can be carried for generations without ever showing themselves. In fact, as much as 40% of some populations carry the gene for red hair. All it takes for a good chance of red or blonde hair is two people with the right recessive genes to have a baby. They don’t even have to have the hair color themselves.