I don't think anyone suggested the boy in this case didn't consent. Your emphasis on that detail in this case is misplaced.
Sex with a minor is statutory rape, however. Even the younger party's express consent isn't a defense, since there is a public policy decision that minors are incapable of meaningful consent.
In the example you give, the person would be guilty of blackmail on top of any sexual crime involved. Whether a person is male or female, they are still blackmailing - which may be illegal. That doesn't address the public policy concern I originally raised, though.
If sex with a minor is statutory rape, then it is, because of a reason or reasons. I would imagine one of those reasons is that we all agree a minor cannot be responsible for certain decisions, therefore the fact that the boy may have 'consented' is irrelivent and my emphasis on that point is not misplaced, maybe misunderstood.
Yes, with a minor statutory rape, regardless of consent, the issue is the penalties for men vs women are different (or at least sometimes seem to be applied differently) even if the crimes are identical.
with all respect, I guess I've just never seen the public policy you continue to refer to anywhere, doesn't mean it doesn't exist, of course, but I do keep up on current events, politics and the like... The statutory rape issue is an example - are you saying that in this example there is a public policy that women and men will be punished differently? Is it codified into law somewhere?