Though you and Joek have got off on the standard combative mode, he does raise an interesting question to which the answer shouldn't be 'whataboutism'. I'm prepared to accept there are men who don't value their daughters and indeed men who out-and-out don't value their children, but that doesn't get to the root of why I asked the question in the first place. Is the OP holding men responsible for actions they have done, or the male sex responsible for what they might do. You seem to suggest it is the latter - and you've given a very good answer.

That said...

If male children are being brought up in a society which mistrusts them, doesn't give them the benefit of the doubt on any matter, and in which we cannot be sure their own parents don't harbour some resentment or even hatred towards them, we have a problem. We have a sociological problem and we have an interpersonal problem that cannot be easily resolved. Should we replace the antipathy of men towards girls with antipathy of women towards boys? And if so, how does it resolve the original problem? In this example, neither sex would be able to function adequately in the presence of the other.

EDIT: This exchange with the lovely SC has now become an article in its own right. https://medium.com/p/fd26c599d2bb