The problem with player-sexuality is a little deeper than only "to be or not to be ... bi". Personaly i mind much more that no one seem to care if they lay down with Tall Elf, Hairy Dwarf, Tiny Gnome, Scaly Dragonborn, or Beautifull (:D) Gith. :-/
I would honestly dont mind if Gale would have kink for Elves ... Concidering how half-breeds are spreaded in DnD its quite common among humans ... but dont tell me such person will be attracked by small, hairy, smelly, Dwarf (no matter the sex, they are all small, hairy and smelly) just the same. :-/
This! My friend I am very concerned about this. Astarion would never sleep with a dwarf or a halfling. Shadow wouldn't have gone to bed with Git! Both have enough "flags" to show it... And this can be seen even more clearly than someone's tastes as male/female. I mean both looks like they hate this race. It's like Gale say 'I dont sleep with man ugh' AND THEN U BANG HIM. Rude.