The argument, as I understand it is that the "theft" is in quotes because it's not literally copyright infringement, but fair use of an old public-domain folk tale that ends up consuming the latter.
Today, when kids know "Aladdin" they know the copyrighted/trademarked Disney character, not the traditional folk tale- that's the "theft" that happened.
Disney made a cartoon of the story without understanding the culture it comes from with the main purpose of selling it to an audience with an even less understanding. And the results was a horrible misrepresentation of somebody else’s cultural heritage.
https://en.wikipedia.org/wiki/The_death_of_one_man_is_a_trag...