NotAllMen indicates that there could be some unacceptable % of men who are rapists/murderers, like 10% or 50%, when we all know it is only a statistically insignificant number of disturbed individuals who commit these crimes. #onlyastatisticallyinsignicantnumberofmen doesn't exactly roll off the tongue. I'll start brainstorming how about #rapistsarentmen or #rapistsarerare. What do you got?