Actually, I can't speak for all genres, but in children's and young adult publishing, books with gay characters are routinely turned away, along with books with characters of color as protagonists, and this is a huge problem in the industry... a good person to follow is Malinda Lo, author if Ash and Huntress (gay Cinderella story). She had an awesome blog post about the number of YA books with gay characters in them awhile back. Then there was another report from a pair of YA authors who were asked by the publisher to change the gender of a gay main character, and they refused, and there was a huge struggle to get the book published. And these were established authors.
Also, when polled, young readers, especially queer young readers, desperately want books featuring LGBT main characters, especially books where "being gay" isn't the big issue; they want gay knights and lesbian warriors fighting dragons and so forth.
I think that this conversation is getting away from the topic of the thread. The DA games have always have gay and bisexual characters in them. I'm sure that this trend will continue. And since that's the case, then we're talking about a particular story told from the perspective of a gay character, since they will certainly be included.
That's really where the conversation should be focused before it goes off on a tangent that isn't productive.
I agree we diverged from the subject a lot, like sandalisthemaker also pointed out, but better to establish a common language than work with assumptions about the other side.
I believe market works equally for everyone, and the supply will always meet the demand. If there is a demand for gay knights, they will inevitably appear. If some crazy people go on a crusade (pun not intended) against the gay knights, I wouldn't support these people. But it doesn't seem ok to me when people demand from an author to adapt his work in order to fit what they want to experience. In my view he is the author, and he has the message he wants to express, and we are the audience. If someone wants to be an author then let him, but trying to dictate to an author is bad taste.
I'll try to use myself as an example. I'm a historian by education. Currently, I feel an extremely strong urge to read fiction based in late 15th century Italy. In this I represent an immensely smaller minority audience than gay audience. I recognize that and I don't feel angry over it. I don't demand from anyone to make a game or a film, or a book that fits my interests. That's the analogy I make.