I mean, all the sex is optional. You can play through the game and never see a sex scene pretty easily (Maybe you'll walk in on Bugbear x Ogress fun times by accident...). So it's not like it's being shoved down your throat unlike say Witcher 1 where you got nudie cards for doing certain things.
Maybe one could argue that relationships devolve into sex too quickly... But realistically given the premise of the setting, with characters being infected by an illithid tadpole so literally any second they could succumb to ceremorphosis, many people would be having sex even without a relationship just to make the most of the limited time they have (So perhaps Minthara is a bit quick, I'm not certain I haven't done a Minthara run to see if she knows about the tadpole by that point)
So the only overtly sexual thing that BG3 does is actually depict sex scenes, instead of merely alluding to them or having characters roll around in their undies. Which in of itself isn't overly sexual besides the fact that society is prudish and doesn't like showing sex (While at the same time being completely desensitized to violence), it's only overly sexual for some poorly directed scenes and/or things like marketing the bear-sex stuff.
Perhaps this depiction could be considered too much, while relationships in RPG's are still pretty shallow. Thus perhaps it would feel more appropriate for more people after the genre has evolved so that relationships were much deeper and more intricate of a feature and less about raising an attitude bar with gifts/a handful of positive dialogue options like a cheap Dating Sim.
Originally Posted by Zentu
I wonder if this sexualization is why we have no Dwarven, Halfling or Gnome companions since they would not "normally" be seen as sexual.
I think that's more due to general playerbase trends. Statistically, smaller races are the least popular in any RPG. With preference erring towards Human, Elf and Half-Elf.
So they made companions that would appeal to the largest number of players. With of course token Gith and Tiefling given their prominence in the story.
That said, I like making my Dream Visitor a hot goth dwarf