I haven't read the entire thread so I am assuming this will have been mentioned at some point, but just to reiterate:
Any positive representations of gay people in any sort of creative medium is great, but especially in video games, which has been an incredibly homophobic art form in the past.
However, we have to be aware of opportunism, faux-sincerity, and most importantly in this case, the fetishisation of lesbianism.
You can't really compare this to something like LGBT cinema, which has a deep history of struggle for LGBT rights (in times much more difficult than 2016), showing LGBT narratives, and being an outlet for LGBT creativity. There's nothing wrong with some straight developers (or even queer developers who aren't involved in LGBT activism), making a character in a video game gay. But it will never mean the same thing as when someone who is from a specifically LGBT arts background does it. Steven Lavelle's games as Increpare are a great example of modern LGBT game development.
There is a narrative trope that equates female friendship with homosexuality, in a way that is rarely if ever applied to close male friendship. We saw it in Life is Strange too- it can perpetuate the false idea that if you're female, you're always secretly in love with your best friend. This denies emotional flexibility to women, it shuts down the possibility of women have a platonic best friend and being gay, it feeds male fantasies about all women secretly wanting to have sex with each other, and it positions women as constantly having a romantic role in every narrative.
I'm not saying that this was the case with Left Behind, although to be honest I thought that Chloe and Max's relationship in Life Is Strange was a bit more developed, romantically speaking, than that of Ellie and Riley. But I think Naughty Dog's writers are really excellent, and that if Last of Us 2 tackles LGBT issues, it will do it sincerely and with complete clarity. I just wanted to point out that it's not just a case of homophobic people vs. people who want LGBT representation in games- in the latter category, there needs to be a debate about how that representation happens, and who it represents. It can't just be a top down thing, where LGBT characters are inserted into a narrative (the whole 'make Elsa from Frozen gay!' thing is an example of this). We need more, and higher budget, queer games, made by queer auteurs, as only this can truly represent queer life.
Also, on a personal level, I'd like to see a game featuring an effeminate male gay character, who doesn't 'earn respect' by acting macho at some point, and who isn't a figure of fun.
I'm queer btw. I hope everyone gets what I'm saying in this post. No disrespect meant to anyone x