The only thing I really remember about the Disney movie Song of the South is that I had a birthday party at the movie theatre watching it in what must've been 1986, and I had a loose tooth at the time and it came out at the theatre.
That, and "Zip-A-Dee-Doo-Dah," which is absolutely an earworm.
But I understand decisions not to include it on Disney+ etc. It is not "erasing history" to leave it out. I think if you can't guarantee that people will experience a story in the proper context, which is "This is the product of racial stereotypes that were wrong when it was made and are still wrong today," then it makes total sense not to include it at all.
I see no reason why it should be any different with Dr. Seuss Enterprises deciding not to continue publishing books with racist and anti-Semitic imagery. It's their decision, and it makes sense.
Reasonable arguments could be made for doing things differently, but ultimately it's their call, and it's not some triumph of "cancel culture" or "political correctness" that this is the course of action they chose to take.
Disney made all of their films difficult to access for a very long time. It was an intentional marketing strategy where after a movie had its theatrical run, it went, "into the Disney Vault", and films would much later than most movies have very limited runs on vhs, and later dvd. Disney would pick and choose which films came "out of the vault", and not all films did. They also aggressively went after the unlicensed distribution of any movie that was in the vault.
With the launch of Disney+, they ended the vault as a marketing strategy but they still get to pick and choose what products they sell.
Now none of that means we shouldn't be talking about Song of the South, and why it was problematic, but not including it on Disney+ probably lead to far more of that happening than what would have happened if they quietly included it.
Oh, and I do remember Brer Rabbit saying "Don't throw me into that briar patch" because that's precisely where Brer Rabbit wanted to be, as a rabbit who thrives in underbrush, so he tricked his captors into letting him get away.
But I have no idea who his captors were, or any other context from that scene.