I think you should shut down your computer and go watch a film. You've clearly had enough internet for today, non-issues are getting in your head.
I think it's potentially not as super trivial/ unimportant as you think.
It's a symptom of a sea change in society. Or at least it feels that way. "White shaming" is a thing in a lot of places now. In this case, each dev who volunteered their time lecture (for free) at that event was contacted and asked not to attend, because the speakers were all white. One did. One refused publicly.
The fact that people got angry about it and started calling out the organiser as a racist - because he didn't target black/gay/trans developer communities in his publicising of the event... it speaks volumes as to where we're headed.
Wherever that is.
e: Once you control media (film, games, press) you have immense power to shape society. We all know that. If you can control the games industry (or Hollywood), you can really start to shape public opinion.