This isn't cultural anthropology, the society doesn't make men mentally stronger. This is more about biology. In the nature, males' tasks have always required mental strength and natural selection took away them who didn't have it. That's why males developed to be mentally stronger than females. Obviously today's society doesn't require more mental toughness from men than women, but that thing still exist in our genes.
Do you actually have any reputed academic sources to back up what you're saying. For example in women "mental sensitivity was more important". According to whom, other than yourself exactly? As far as I'm aware there is no scientific evidence whatsoever linking "mentally strong genes" to men more than women. That's just sexism at its most culturally penetrating.
Up until recorded civilisation, say 5-6 thousand years ago*, I don't think mental sensitivity would have been very useful, in natural selection terms, for women so much as a very intense mental strength needed to survive in often harsh, brutal and highly competitive conditions. Stromalite has already made the point I was going to make better than I would have:
In fact there is a pretty strong consensus amongst evolutionary biologists that the main driver of gender differences is not survival of the fittest but rather sexual selection, i.e. competition for mates. As a result, men tend to be more competitive than women, and a lot of their behaviour (including them being the hunters in primitive societies, while women did the less glamorous work of gathering nuts, berries, etc.) can be accounted for by this.
All in all I find Tsonga's comments very ignorant. Even cavemen may have appreciated the mental resilience of their partners more than he does.
*Even after the "dawn of civilisation" the mentally sensitive homemaker
is just a social archetype male dominated society has created for the seen but not heard female in order to perpetuate the patriarchy on which most early cities, subsequently kingdoms etc. were founded. I would think it requires much resilience and mental strength on the part of women throughout history to survive the endless rapings, painful childbirths etc. they would have been subjected to.