Growing up with 2 sisters and my mom I learned this very early. Hardest thing for me not to bite on is the “gender pay gap”.
It's really easy to refute it. Pay gap is simply the result of comparing the average income of every single man and to the average income of every single women, while not controlling for a
single variable (such as the fact that men are more willing to relocate for work or work dangerous jobs). Simply point out that men vary more on the extremes while women are much more homogenous; all the most violent people in human history have been and will always be men too, should we equalize that? Should we equalize men being 10x more likely to commit suicide and be homeless? They literally cannot make a single argument against this, although women seem fundamentally incapable of grasping statistics and generalizations like this, because everything has to be about them.
Another very simple argument: Men make more because they have more incentive to harder in order to attract women and/or build a family. Again, watch their attempts to refute this and then end the discussion.