Why Chinese religion, culture is pagan polytheism as all known civilizations

World historic record says that the Chinese people, are ruled by Dynasty. Interestingly, like all known human civilizations, Chinese religion and culture is Pagan Polytheism, not monotheism with a fictional spirit-God. Acording to Chisese historians, tradition dates their civilization to the founding of the Xia (SYAH) dynasty over four thousand  years ago.  We read that the Zhou or Chou (jo) dynasty ruled from C. 1027 to 221 B.C.enlarging and promoting philosophy. Chinese have a strong belief in life after death.Remains of human sacrifices  found  in royal tombs are evidence of peoples' efforts to win the favor of the gods. The Chinese also wanted to provide companions for the king and members of his family on their journey to the next world.   Source of the history: National Geographic