So it is not lose lose unless the game is literally relying on sex to sell, in which case, the game is crap and won't survive. Why? Because people who want porn in a game will still likely buy a good RPG that doesn't have sex, but people who don't like porn and don't want it in their games will struggle internally about buying a game with porn in it even if the game is good.
I know you do not demand its removal, and your personal position is really respectful and compromising to others, but I would still like to criticize our last points.
What you described is an extremely good recipe for cultural stagnation, when companies are too afraid of scaring customers so they always play it safe. But yes, I, for example, would buy BG3 without gore and nudity, as I bought POE 1,2 Tyranny, DOS games. But there is still a chance to increase sales not because of "porn" as you name it or gore, but because there are people who probably will be appealed by the game that does not treat them as sensitive kids, who start feeling discomfort when seeing gore or nudity. There are also people who would want to see a more believable game that does not hide its disturbing edges. I heard people saying that all of this does not contribute to the story or world, but it does, and it is done in Game of Thrones or Witcher for a reason.