I definitely agree that if a game is your typical RPG where you create your character, they should very much be your character. Maybe being fully inclusive with everything can be challenging, but if you have 10 characters you should probably include a gay option. I do understand that if you have a party of about 5, there's no reason why someone has to be gay either
I'm not sure every game needs a gay character and I wish it wasn't a news story when there is one (see Bill from the Last of Us). I also don't feel this applies to every game.
A character isn't necessarily more interesting because they're not a white male. They're interesting because they're well written, well thought out and fun (or I guess immersive...) to play as. Again, look at the Last of Us. Joel is somewhat generic in the gruff American white male everyman, but they made him an interesting character.
Just because you include a woman, minority or gay person doesn't make your game good







