You know, to an extent, I understand the "we don't need inclusion for inclusion's sake, political correctness gone mad, working off a checklist argument." To an extent, I agree with it - to the extent that I think it's obvious when the writers don't feel passionate about what they're writing and are only including it out of a perceived obligation, to make a quota. That's what I think of when I think of when I think of "the checklist", and I think that the quality of the writing suffers in those scenarios
What I do not understand is the apparent hostility some people have to the very concept of including any more minorities at all, be it race or gender identity. The idea that "haven't they done enough already?", to me, carries the implication that any further inclusion and representation would qualify as a defeat or sacrifice on their part. That it involves them surrendering something to someone else, with the vague implication that they've surrendered enough already.
Now, I could be entirely imagining that, reading way too much in to certain individual's posts. That's just the implication I'm seeing in the hostility certain people have towards the idea.
Speaking for myself - a white, cisgender, straight man - I don't think the inclusion of non white, non straight, and/or trans characters harms my experience of the game at all. I don't lose anything by their inclusion, I'm not giving anything up so they can be in the game, so long as they're in the game because the writers actively want to include them, have an interest and a passion towards the character and aren't working off a check list.
I don't know. Maybe it's just the implication that the only reason a trans person would be included in the game is because they're working off a political correctness checklist that irks me. As if the writers couldn't have a legitimate interest in including such characters. That's a concept I can't understand.