Go to Larian's website. The huge advert for BG3 there is entitled 'Love in the Forgotten Realms'. Go to just about any review of the game. The romance features heavily. Play the game. The romance and relationship scenes occur just about every time you camp.
You need to be willfully looking the other way to not notice that it is a large part of the game.
I don't think romance currently in BG3 comes even close to even the tackiest dating simulation games.
In fact its so barebones that it is incredibly cringe.
I have clocked about a 100 hours into this game and the romance lasted about 20 minutes total.
I don't mean fancy mocap sex scenes, or an interactive sex minigame. I am talking about dialogue scenes too... you know the whole point of companions in BG3 or D&D game in general.
Which you know is a huge deal in a dnd game.
I think your post is just blatantly misinformed and that doesn't seem like a good recipe for constructive discussion.