A similar thing happened. You can Baidu that Doris and China were established in this way. However, it is difficult. Shortly after Zheng He, it was the era of navigation, which ushered in a great geographical discovery. Isolated islands in Southeast Asia are relatively easy to find.

But it is difficult for a bunch of people who don't know much about science to live satisfactorily on an island, and he doesn't have to. How nourishing Daming's life is. After material satisfaction, people should first pursue spiritual satisfaction. Being an emperor in an isolated island, due to limited conditions, many material needs cannot be met. As an emperor, the spiritual satisfaction brought by power will be greatly reduced, and he will not be as proud as you think. So he doesn't have to.

All original, hope to adopt!