Corporate isn't an AOL chatroom. I remember those childhood days, and you're right. But the corporate environment I worked in was nothing like that. From about 2014 or so, identity was front and center.
This post [1] mentions a couple of the most salient anecdotes about my experience, but I've got so many more.
I was told I couldn't hire or refer white people on numerous occasions, certain groups (mostly the "WomEng" group) were given nice lunches and off sites and I had to take their oncall or interviews, I was told to cover for the work of underperforming engineers for well over a year before anything was done about it (a couple of non-special friends were simply let go), we all had to sit and watch other engineers get awards for their race (exactly what it sounds like), we had our walls painted with caricatures of our special identity groups. Every bit of it felt like an HR gimmick.
And that's barely scratching the surface.
It was one of the weirdest things I've experienced. And it carried on for years.
I tried to participate. I was an early proponent of this stuff. But when it started turning into favoritism, inauthentic gestures, and began feeling more like policing than something uplifting, it demoralized me and made me feel shitty.
[1] https://news.ycombinator.com/item?id=42687151