When the furries get the races they are asking for, every sexual encounter will be a kinky one.
I don't have strong feelings about the suggestion but I'm probably more against it as an official game development. I'm not into kink-shaming but I'm not sure that having it as part of BG3 is something I want to see. Aside from anything else, you'd need a huge list of possibilities to please everyone; "Hey, you have the ABC kink featured but not the XYZ kink. That's discrimination!"
I understand that Drow and Dark Elves have long been a favourite of the BDSM crowd, and I understand why they are viewed that way. But having one particular racial sexual culture in the game shouldn't mean that the floodgates should be opened. Let's get the basics right in the official release and leave alternative sexual features to the modders.