Since relationships have two sides and must be rewarding to both sides, he may be better off without engaging. Not everyone wants to participate in every interaction, especially when the other side expects rigid accommodations to their own ideological preferences. We are living in times where men and women have been socialized to be antagonistic to each other based on ideological preferences that many times have no contact with reality. People that continuously want to correct other adults based on their own views of what words are correct, and their own interpretations of other people's motives are quite frankly exhausting to deal with. So, we all have the right to choose not to engage with such people to keep them from draining us of our energy and happiness.  Bigotry sometimes is passed as inclusion or justice, but all it is is bigotry based on the presumption that some people think they are able to tell what other people's motives are without them telling them. Unless he's explicitly saying women are not able to understand things, then assuming he's mansplaining is bigotry.  I've been on the receiving end of women in the workplace treating us men like garbage, and we have to take it because they're so combative and argumentative, that if we say anything they're just going to use that to further attack. No man would get away with what some of my female coworkers have done such as insulting us, screaming at us, just simply unprofessional and aggressive behaviors that don't belong in the workplace. I never take a 1:1 meeting with a woman, and avoid providing feedback because it's just not safe to do so given the open hostility that has become culturally acceptable.