You forget that that there is another possibility: that one of the religions is true. Of course I am thinking that my religion is true just like you think that your belive is true. I have way more reason to believe that my believe is true than the minimal fact theory. The fact that you just dismissed all the facts in it as mere stories shows me that there is no sense in giving you the other reasons. Have a nice life.
Any instances that are slightly conservative or even allowing free speech are getting defederated because “they are offensive”. No wonder people get triggered by this cartoon.