There's a reasonable version of IP laws we could have. Imagine if copyright lasted five years. Thats plenty of time to try and turn a profit. Would a fan made sequel to 2019's Pokémon: Detective Pikachu really detract money from the creators of the original at this point? If there was a fan made sequel today and also an "official" sequel, would the fan sequel stop people from seeing the official one? No. It just gives people more freedom to actually vote with their dollar on the better made one. The laws we have today around IP are just corporations being greedy and paranoid that they wouldn't actually be able to compete with "unofficial" sequels and reboots. It's cowardice.