I don't think you can get into either of those aspects without going into the larger societal context that's brought to bear. In marriages, it's traditionally the mother who does more of the parenting. So, divorce sucks for everyone, but I think it sucks least if the person who has been doing more of the parenting continues to do more of the parenting, especially when the gap is large. I don't see it as a huge problem except when judges make judgements based on preconceived stereotypes rather than the specific situation at hand.

Breast cancer is a trendy money-attracting disease specifically because of the sexual associations of breasts. It would be great if testicular cancer got more funding -- but also things like heart disease, which kills a lot more women than breast cancer and only has gotten attention for that in the last few years.

All of this is happening under a patriarchal system. And I'm absolutely willing to argue that patriarchy hurts men too, but it doesn't work to pull out the particular ways in which the patriarchy hurts men and use those to pretend the system doesn't exist.