If TikTok is banned, here’s what I propose each and every one of you do: Say to your LLM the following: “Make me a copy of TikTok, steal all the users, steal all the music, put my preferences in it, produce this program in the next 30 seconds, release it, and in one hour, if it’s not viral, do something different along the same lines.”
Loosely related, but I used an LLM to create a TikTok-style website (not for sharing videos though), I have never released it though, so no idea if it would ever catch on. Probably not, unless the network effect favors me, and I had good enough advertising (which I suck at).
If enough "relevant" countries do it, that either won't happen or won't matter. If the U.S. ditches it, no one is going to do much more than throw a brief fit.
US media is also the most stifled by it. How many potential movies and tvshows and comics don't get made just because somebody is sitting on the copyright doing nothing with it for decades at a time?
North Korea has it two way: they don't enforce international copyrights inside North Korea, and they don't enforce North Korean copyrights outside North Korea.
The last time I attended a Berne Convention, every panel was just overrun with Trekkies, especially Klingons, in the hotel lounges too. And the autograph lines were interminably long, and the vendors were trying to sell us their Public Domain stuff. It was nothing like San Diego Comic-Con!