You can hit witnesses with child screwers, UN arse kissing, 1975 redux, etc. etc. etc.
You will influence people who do not have an emotional attachment or who have lost their emotional attachment to the society, but you won't get anywhere from people who still have that emotional attachment.
Religion, including that of Jehovah's Witnesses is based on emotion not logic, so trying logic is a waste of time.
You have to get people emotionally detached by getting them emotionally attached to something besides the orgy.