The problem is, you want everyone to play the game without the option, and they want you to use the option to skip things. For a person who doesnt share your distaste, this is the equivalent of someone asking to remove a character creation face from the game because you don't like their appearance. You basically want to remove something you don't have to engage with, simply because you don't like it.
BG 1 and 2 were 20 years ago, created by totally different people, with a different demographic, goals, and crpg culture, There is no reason to expect the same thing.
As far as it being porn, people aren't necessarily wanting these things in the game for the same reason. For some this is the narrative fulfillment of a relationship/plotline. Its in there for the same reason other scenes are. Because its a visual medium that shows you a story.
You ask why? but for many the question is why not? Basically many people don't share your same perspective on this type of content in games.
that isn't to say you are the only one, some people in this thread agree with you, but its not the self evident truth you present it as. Its a subjective thing, so the devs can weigh your opinion, others opinions, their own, and decide how they want to handle it, but you aren't intrinsicly right
