You cannot possibly know the knowledge other people posses or where they get it. Weather or not you accept what others say is based on what you know or what you assume but trying to form opinions based on things you know nothing about, or have never experienced, is very telling about how much weight your arguments should carry.
Your arguments are based on empty assumptions and therefore your arguments are empty. There not being physical evidence of revelation is by design so that each person's experience with regard to their mortal probation is based on what they seek and find and not what someone else seeks and finds.
Now, having said that, I have personally seen the consequences of the power of the priesthood being properly used, even on unconscious individuals so I have even further evidence that what I believe to be true IS true and you are left with nothing more than your assumptions based on what your five senses, coupled with your life's experiences, have told you. The problem is that revelation does not need one of the five senses and the current explanations for our physical universe are in a constant state of flux wherein nothing is for sure by virtue of the reality that there is untold amounts of information that we are not currently privy to, information that has the potential to disprove most, if not all, of what we understand about our physical universe. This is the plight of the Atheist.