Maybe one set of beliefs that could be undone would be the notion that a religion could contain one set of beliefs. Our beliefs change as we age and mature. So we can take different meanings and thus different beliefs from the same set of teachings from one stage of life or one decade to the next. And maybe your next belief system may contain a greater degree of complexity than your prior beliefs. Good luck and keep reflecting on your certainty. That will be more useful than degrading the beliefs of others, which wasnt likely to help them transcend their beliefs anyway.