This remind me of the intermix between the han Chinese with the native inhabitants of southern China like Fukien and Taiwan. In the Tang and Song Dynasty, the Han Chinese migrated down to Fukien due to war etc. When they occupy Fukien they intermixed will the native tribe there…. Similarly the Hakka people also follows the same pattern. Intermarriage with the native when they migrated to the south. It’s like history repeating itself. So the current people in Fukien , Guangzhou, Hainan even jiangsi ( including Taiwan ) are descendent of the intermarriage. 😊