Don't believe for a second that Sora will allow you to make racist content with Disney characters.
That said, there are a lot of other models out there that care about neither licensing nor alignment. So those will allow you to make racist content. Then you can do whatever you like with that generated content.
A lot of IP owners will learn that there is more than one way to skin a cat. It's easier than people think to turn children's characters, like say, Hermoine, into a raging racist. And there's very little technically speaking that they can do to stop it.
But yes, on OpenAI specific properties, they can definitely stop it dead in its tracks. They can even get better at stopping it over time. In fact, the more users try to generate it, the better the system will get at stopping it.
Don’t believe for a minute that whatever filters it uses will be sensitive enough to the way racist content is constructed to stop people from doing just that.
It's right up there with "Let kids communicate anonymously but not to perverts" and "Is this porn or educational?"