What's the story about albinism in the "Moon Island" in the Pacific Ocean?

In the vast Atlantic Ocean, there is an almost isolated island-Linsoys Island. More than 300 residents on the island have this quirk. They like the moon and are afraid of the sun. Residents have snow-white skin, white or yellowish hair, pink iris, fear of sunlight and poor eyesight, hence the name "Moon". The mystery of "Yuezi" was not known until the scientific investigation in the early 1970s. It turns out that almost all the residents on the island are albinos. Because the island is isolated from the world and has a small population, residents are close relatives when they get married, which leads to the inheritance and accumulation of albino genes from generation to generation, so the probability of suffering from albinism is very high, resulting in a "moon".