Personally, I liked the Disney version of The Little Mermaid far better than the original version (I just felt sickened by the mermaid in that fairy tale, and not in a good way. I also hated that she was essentially a karma Houdini regarding her largely selfish actions, many of which she made absolutely NO effort to fix and did cause a lot of suffering. I had a different ending in mind for that story: that the mermaid get a soul from God, yet be sent into the fires of hell for eternity for all the selfish acts she did, with not even her sacrificing her life to avoid killing the prince being enough to make up for them. At least Ariel actually DID clean up her messes. You want a story that actually DOES promote sacrifice? Try Mega Man Zero 4. That’s sacrificing yourself for another done RIGHT.).
And as far as the Disney versions of Snow White, Cinderella, and Sleeping Beauty, I thought they were pretty good, to be honest, certainly promoting conservative values. And besides, Cinderella wasn’t even BASED on the Grimm version in the first place, it was based on Charles Perrault’s version, so there was zero need to alter ANYTHING, which, BTW, they really didn’t alter it that much.
I’ve grown to loath the Disneyification of classic stories so much that for me “blue dress” (because they always seem to have one) is a four letter word. Never read the original Mermaid, never saw the Disney either, I was done with Disney before they made it.