Some of those folks are unfortunately unhinged. I mean there are things that have made me uncomfortable here and there, but I think we all know it's a show. Sure, there are some things that haven't aged as well as hoped, but a lot of the park has aged well, despite the faults some people try to find.Where's the outrage for anything inside Disneyland?
I hadn't heard anyone comment about Splash Mountain, the auction scene, the hanging corpse, etc. before there announced changes and I've spent a ton of time talking Disneyland online, at the parks, and working there.
After they announced the auction scene a few people were like 'oh yeah, that always bothered me'- but I don't remember it ever being brought up before the announcement.
Anyone with a cursory interest in park history knew Splash was based on Song of the South, but the story was always how Disney removed any insensitive elements when adapting the story to a ride- and I've never actually met someone who thinks the ride is offensive.
The Haunted Mansion is as classic as they come- I'd argue it has a more devoted following than Pirates, even if Pirates is the more popular ride. The Stretching Room is beloved and iconic, and I don't believe there's any actual outrage.
Disney's just preemptively trying to eliminate anything that might cause outrage or offend a visitor at some point in the future- and the park is going to loose a lot of it's more wacky and unique elements because of it.
That said, I did overhear a conversation between two custodial Cast Members in a break area talking about the "babbling sisters" joke that was present in the Mine Train Thru Nature's Wonderland attraction saying it was insensitive or something. But that was removed over 40 years ago so I think Disney is in the clear there.
Anything can cause outrage, though. Hell, some people hate the fact that it's named after a dead white dude. Some people don't like the patriotism of the place or other reasons. It's ridiculous to go after it all when you should go after the worst things and leave the rest alone. At least, that was what Disney would do in the past.