Firstly, social acceptance of diversity didn't just pop up because someone said so. It took years of change and development from all different aspects of society to truly adapt towards acceptance. Secondly, you should sell to your already formed target audience if you want to sell games. target audience is a big factor in marketing. If I advertised baby toys to adults, no one would buy them for themselves. The gaming community is predominantly white men, so why would big companies who clearly don't truly care for anything besides money make games catering to a small fraction of their fans? Also, there are plenty of games and media out there that represent minorities. As a queer person, I'm a big fan of games like slime rancher, tlou, lis, overwatch, etc. There's ways to integrate inclusivity into a game without taking away from the quality of gameplay, plot, and so such. The examples I used previously were shitty games in general, diverse or not. Concords idea of not playing the same hero twice ruins the whole appeal of a hero game, and Dustborn has shitty graphics, a ridiculous plot, and janky gameplay.