It's not out of place. If games can adress issues related to morality, social structures or inequality they can adress sexuality too. You're not getting spoon fed anything, games are not educational tools, they are a reflection our society.
I disagree with all of this. They are called games for a reason. They are a method of escape. I have no idea what you mean by them being a reflection of society. They aren't and there's absolutely no need for them to be.
If I wanted any exposure to left wing hand wringing about people who hate themselves I'll go and read the Guardian. They can keep it out of my hobbies and pastimes.