It draws attention to it and clicks and views. Orcs of Thar was mostly long forgotten wasn't even that major when it came out.
It's fanning the fires if they did do a rewrite it would make YouTube videos etc.
Well more like blowing oxygen on near dead embers.
People think that helps but after the events of 2015/16 it makes things worse.
The product is a reflection of the time it was made. Sometimes those mirrors to the past aren't nice.
I think people like to dunk on Orcs of Thar because:
1) It's fun
2) It's a way to demonstrate that you're against racism ('cause Orcs of Thar is obviously pretty cringey).
3) It's a way to signal membership in your tribe (I hate racism...me too!) and get social kudos.
4) It's a quick way to try and make the world a better place (all it takes is a social media post).
I do think that if we want to help indigenous people in a substantial way, that dunking on Orcs of Thar is not going to make that much of an impact, again because it's just a quickie way to raise awareness (social media posts take 5 minutes).
What the OP is doing by donating to the Lakota School at Pine Ridge is probably making a real difference, because it increases educational opportunities for kids who are suffering from significant poverty, and are still dealing with the aftermath of being subjugated 130 years ago.
If you really
wanted to make a difference, don't post on enworld, don't edit D&D books, take a year off and go volunteer to work at that school. Live in a trailer, get paid next to nothing, deal with kids with emotional problems (due to poverty and bad family dynamics), while occasionally being told that "you don't belong here" by some of the more salty locals.
I speak from experience.