According to Osho, monotheism is not a step in human evolution but a priestly device that centralizes power, enforces intolerance, and blocks the flowering of buddhas. By insisting on one God, one book, one prophet, it breeds violence and conformity. Polytheistic, decentralized traditions allow freedom, diversity, and inner growth, honoring each person as a potential god without priests.
Monotheism is a control trick by priests that stops your inner growth; many paths and personal freedom help you evolve.