Are women healthier and happier by having a lot of sexual partners in their life like being active in hookup culture and having a lot of one-night stands?
The women who want many sexual partners, to hook up, and to have many one-night stands are unquestionably happier than they would be if they did not.
The women who don’t want to participate in any of these activities would be miserable if they did so.
You see, there’s no argument to be made that engaging in any specific romantic or erotic activity (“It’s good for your skin!” “It lowers stress!”) directly correlates to someone’s well being.
Anything that works against someone’s preferences almost always makes them cranky and tense.
Try making this argument to asexuals of any gender. Good luck not getting smacked in the face.