Earlier quoted context omitted.
For it not to be held up, someone has to take Disney to court and win. Good luck with that. It's the whole single-digit millionaires don't have effective access to legal system , turned up to 11. I can only see a double-digit billionaire having the resources to fight this to the end.
Not quite. For this to hold up, either: - everyone has to silently acquiesce to this, - Disney has to actually file a court case against everyone who violates their "terms" and win them all. I think they're trying for the first option. Suing thousands of people for stupidly unreasonable reasons is not a good look, especially for a company where image is everything.
Disney is saying they have the right to use any tweet containing the hashtag, including your name (and probably profile picture). If they use your tweet and you don't like it, you can sue them for copyright violation or using your name in advertising. However, there is no way in hell you can win that suit, because it is Disney and it will take years or decades and millions of dollars to fight it in the courts.
So if they use your tweet in advertising without your consent, your options are (1) to give up and move on, or (2) to spend the rest of your time on earth and all the money you have and will earn to fight them in courts.