@neologist,
There are 4 logic problems with your question. If there is a God and most religions have God then unless God is unimportant then the religions get the most important thing right. I am using your 'logic'.
2) Do you mean All correct or all wrong. What in life is ever that way?
3) Even in the perfect religion, would anyone attain to the correct understanding.
4) Isn't that a question that can only be answered personally, Unless you are insinuating force against others because you assume that you are correct always
This is a very disturbing question because there is no thought but plenty of emotion