All sentient beings have different karma and obscuration in their minds. When they perceive the same object, they would have different opinions on how the object would look like. Take for example, when the humans look at a glass of water, the gods would perceive the water as nectar whereas the hungry ghosts will perceive the water as blood and pus! Hence unless our mind is completely free of any obscurations, we cannot perceive any object as is. Furthermore, on a conventional level, every object (sentient being, god, religion, etc.) is unique because these objects arise from unique causes and conditions. Hence, there is no point for the citizens to argue on the differences of god and other religions on the conventional level. However, if we perceive all ojects at their ultimate level, they are of the same nature - empty of inherent existence!