Unrealistic. If this premise were true then the women would keep you locked up somewhere, well fed and on a strict exercise regimen, have daily physicals, and you would be a fucktoy for about 10 hours a day. Until production finished on the male robot companions with optional insemination capabilities. Come to think of it there was this story called M.A.I.D.S. on Wattpad with the same storyline, except it was the opposite case, where all the women had died but a few. Funny enough it was written by a gay guy.