Very interesting analogies, I thought this one was particularly poignant:
“These people are having sex with a lot of people. Obviously, they don’t mind having sex with other people, and that gives me the right to have sex with them, by force if necessary.”
People unfortunately actually have made (and still make) similar statements to justify objectification and sexual predation of people labeled as promiscuous. It doesn't seem like something that has changed though at a certain point in time due to a watershed reconceptualization (the sexual revolution?) equivalent to the generational shift of offline-born to online-born.
It is about societal conceptualization of sexuality and (in the case of NSA situation) privacy, but I don't think it maps cleanly onto generational change. When people see sexuality or privacy as "all-or-nothing" matters, the same crude logic pervades, whether it's "they aren't a virgin, so they can't refuse sex" or "they share everything on facebook anyways, so they can't refuse giving it to us."