With money, we already know that there is one true standard of currency, per each country and economic union. Thus, it is possible to measure units of that currency against the standard and determine its legitimacy. You cannot do that for religions, simply because each of them regards themselves as the one true faith. First you have to establish that there is a true faith, and then that it's yours, before you can pass such judgement on other religions. You haven't done anything like that.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'