@reasoning logic,
As I’m reading your post, my first thoughts involve confusion as to why you have chosen to start your question from a position that assumes all religions are wrong, and then questions why. To begin answering this question, I believe that one should approach it from a slightly different perspective. We could instead ask questions such as, “What makes any singular religion wrong” or “What makes any singular religion inferior or superior to other religions?”. You’re asking sort of a pointed question, and to examine what you may be wondering, I think it makes sense to take a step back and examine this topic by asking more neutral questions. To do this, one may choose an extremely objective method, like examining prior probability of significant events that occur within all religious doctrines, then comparing which events are most likely to be true even if they are not verifiable. However, objective measures like this can mathematically complicate things, leading one to lose sight of what they’re trying to understand in the first place. My take is that you’re trying to figure out what makes religion wrong or right. Allow me to present a simple argument that deals with the superiority, or lack thereof, of any given religion.
1. If any given religion is superior to others, it will produce morally superior people.
2. No single religion has been shown to produce morally superior people.
3. No religion is superior to others. (1, 2 MT)
You can use this argument, or similar versions of it to base your thinking off of, then begin asking questions such as, “Is any religion more wrong than another?” or “How then should I choose which religion to believe in, if they are all equally right?” Based on my argument, there is no singular religion one should believe in because it is “more right” than any other. Instead, it points to the philosophical problems that arise through religious pluralism. If all religions are equally moral, does this invalidate the purpose of religion in the first place? Researching these questions can help you think about your original question in new ways and lead you closer to possibly answers. Please do let me know your thoughts, as you said in your original post that you would like to respond by sharing them.