Frankly this is a massive and misdirected overcorrection. It's true that very ugly, very disabled, and various other minorities have been ignored and invisible for so long, but even grouping them into one sweeping category of "diversity" is insulting and patronizing. Why should black people be grouped in with disabled people? What do disabled people have to do with obese people? What do obese people have to do with mentally challenged? And so on. Diversity is so much more than meets the eye. Look around you. That people at work. At school. Do you know their life story? Do you think you know everything about them, just because they look average and well adjusted? This "special people first" thinking is the kind of harmful perspective that leads to people getting ostracized in the first place. Boxing people into reductive checkboxes. If these companies truly want the extreme minorities to have equal footing with everyone else, they should be celebrated alongside of them, not apart from them, exclusively because of their problems, differences, or shortcomings. Honestly, people shouldn't even be categorized like this. Abbreviated into marketing statistics. People are worth celebrating individually, when they' achieved something, not because they're part of some arbitrary group they did nothing to be a part of (or choose to be born into). Everyone who's lived a full life has a story, should be celebrated because of their achievements, not just because they have some debilitating problem.
It's understandable that companies do this for attention, but it's sad that so many have bought into it. Don't be anything less than who you are in totality. Don't let the thing that others use to define you become the only thing by which you define yourself. Gay, black, disabled, female... if you're any of those things I'm sure that has shaped your life in a big way vs the thing you're not... but it doesn't have to be all you are. You could, in fact, be any of all of those things and share a lot of the same interests as anyone else who isn't. Or have interesting stories that don't revolve around any of that. Freedom has become a diminished value because we have forgotten that people could in fact be, not defined by severely limiting traits that they don't even have control over.