Whether feminists are happy or not has less to do with the future of society than who men will choose for their wives and the mothers of their children.
Countless articles have been written about what women want, or what makes women happy, but little about the choices men make.
Men are hardwired differently than women, as are their needs. Men wants sons who will live after them. Marriage gave women certain social "rights" in exchange for bearing their husband's sons. Men still produce sons, but "progressive" women have largely given up the security marriage gave them. Thus, the reason for feminists unhappiness.
"Traditional" women, on the other hand, seem to have "gotten it right", and are ignoring the failed concepts of feminists. Thus, the reason for traditionalist's happiness.
Totally agree with you. We are wired differently, just a biological fact.