I think it is well-known that men as a group have more degrees and education in STEM fields, have higher numbers in STEM careers, and perform better in the subjects according to testing measures. As you say, it is also well-known that we view women as better adjusted socially. And as you say, it can be taboo to make this point. I think when making this point, the important thing to realize or clarify is that it doesn't have to be this way! There is no reason to think that women will necessarily not take to mathematics or that men will necessarily be socially stunted. We can create better environments for children so that both issues can improve. I think part of the taboo about making your point stems from a fear of a biological-determinism argument about math ability. Which may not always be the case.