Live poker is a whole different game than online. At the same stakes you may play live and kill you will find a lot better competition online. You find "donks" live and you find them online. You can't get physical tells
while online and timing tells are a joke. If you really want to "prove" the percentages are off start compiling a database of billions of hands. And I mean BILLIONS, maybe 100s of billions, thats the only way you may have sufficient data to come to any sort of worthwhile conclusion.