@abso I do agree with you about the importance of motherhood. When I first had DS I felt it was the first time I was doing a job that society believed I could be good at.
However what happens in this world is a kind of tit for tat exchange. Women are seen as nurturers so somehow they can't be strong. Women are hard-wired for empathy so somehow they can't be good at maths, science etc.
That is why, IMO, so many feminists are so willing to point out that biology is not destiny and to provide examples of men and women who run counter to the biological divides we've set up.
But it's entirely possible to be good at many things.
TBH I'm not sure how this fits in with your argument which seems to be: if we valued motherhood more (and it is feminism that is to blame for this devaluing) there would be less male crime when it is clear that in societies where motherhood is valued (but contained to the private sphere) male crime is just as, if not more, rife.
A better argument would be to take the values that we associate with motherhood and women: empathy, nurturing, altruism, elevate their status and extend them across society so they are considered desirable traits for both sexes.
But that will never happen as long as boys see "girl" as an insult.