Are Sumerians the immigrants of China ancestors to the two river basins?

Why can't we say that Sumerians are descendants of my Han nationality? According to population migration theory. In the process of migrating to Central Asia, white people and yellow people began to part ways. White people went to Europe and yellow people went to the East. The environment in the ancient East was stronger than that in the west, and the ancient Kunlun myth in China was very popular. This shows that the ancestors of China people probably came from Kunlun area.

The two river basins are often invaded and replaced by civilizations from Central Asia. Even Aryans and aborigines in the Caucasus had to avoid Central Asia when they moved. Alexander's crusade to the east should also avoid Central Asia. Why? The folk customs in the mountainous areas of Central Asia are tough! However, why can people from Central Asia invade the two river basins? But there was no crusade? I think they should have arrived. Just basically reimbursed half. China ruled the Yellow River Basin from the legendary Fuxi. During Emperor Yan's period, it developed to Jizhou in the north and Xiangjiang River Basin in the south. It is said that it reaches Kunlun (Guanzhong) in the west and the sea (Taishan) in the east. The period of Huangdi and Xia and Shang Dynasties are not clear because of historical reasons. Probably concentrated in the Central Plains. However, according to historical records, Xia people and businessmen often conquered neighboring nationalities. I have been to Longxi and other places.