If you haven't had sex you might as well have died. Chances are you feel very strongly about not dying, even if you may want to rationally.
Sexual selection being at least as important as natural selection basically, men who were morons and got themselves killed or just died due to weakness before reproducing were selected against as much as males who the fairer sex did not want to fuck. Unfortunately those males who were not hurt by having no sex did not reproduce either so you are not like them and will have to suffer. Females refusing to have sex without you is being rejected by nature itself, you are not seen as fit to propagate the species and only good to be exploited for labour.
Societal construction is an emergent phenomenon and does not negate the underlying laws of nature but fully remains in their constraints. We still constantly fight, hurt and kill each other for control over resources and dominance, creations like capitalism, socialism, and nation states are just new avenues for it.
A reactionary chauvinist is someone who paints to nature and says that it good because it is natural, merely acknowledging the existence of the rules governing societal interaction, in particular in regards to sexuality is not an appeal to nature, especially when I dislike it and would want to change it.
“persons of note“ were all higher status males who had the luxury to ruminate about their numerous relationships and affairs, you will never see a peasant without an education and any free time ruminate about the nature of reality or some shit.
People’s obsession with sex and love predates capitalism and even civilization itself, you see the same themes repeated in all these ancient stories, sexual interaction always plays a central role.