All joking aside, it all comes down to money and consumers. The majority of consumers don't really care about issues in their games. They play games as an escape on the whole. Although these issues are important to some folks, the majority of the people plopping down the money for the games simply don't give a fuck. The publishers and developers are in it to win it, so they will develop and publish whatever sells.
If you suddenly convince the world that your lgbt conscious game is the must have goty, then you'll get what you want. Sadly, no development shop is going to champion that cause.
also, I like PEOPLE.