Final answer:
Mythologies are considered Pagan by modern religions and governments due to their polytheistic nature. The term 'pagan' was used by Christians to criticize worshipers of other gods, implying ignorance and foolishness.
Step-by-step explanation:
Mythologies are classified as Pagan in the eyes of modern religions and governments due to their polytheistic nature. Pagan religions, such as the Ancient Greek and Roman religions, worship multiple deities with various responsibilities and capabilities. These religions also involve rituals, ceremonies, and beliefs that are distinct from monotheistic religions like Christianity. The term 'pagan' was used by Christians to vilify worshipers of other gods, implying ignorance and foolishness.