The key fallacy of polytheism is its anthropomorphic deities. Polytheism applies human imperfections to deity, making polytheistic gods unworthy of worship. It is apparent that polytheistic gods are made in human image instead of humans being made in their image, lending credence to the view that polytheism is a human invention or superstition as opposed to a depiction of reality. Polytheism lacks explanatory power. It doesn't account for ultimate causality and ultimate unity, which is necessary to explain a diverse, changing universe. There can only be one unlimited Cause of all limited existence.
Falsehood of Polytheism Rules Out Numerous Religions
Since polytheism and henotheism are false, Hinduism, Shintoism, Mormonism, Taoism, Hellenismos, and other polytheistic/henotheistic religions are false.