The first step to successful manfraining is realizing that not all mansplainers are the same. Your approach must be tailored to the brand of bold, loud wrongness you are facing. Here is a helpful guide to neutralizing the most frequent offenders.
"The biggest problem I’ve seen, in both small and large companies, is that CEOs and execs treat diversity hiring and retention as though it’s an HR problem...but if execs aren’t individually accountable and aren’t forced to confront their own performance in this area, it will remain an HR initiative and will never get as much traction as your company hopes."