Copyright is a patch over the lack of a real social safety net. If you can’t get paid for making things, and you have to get paid to live, you can’t make things. We can’t have this unrestrained Demon Capitalism and nice things without something like copyright.
Copyright means if Disney uses something I made in a way that exceeds fair use, I have as much power over them as they have over MCU/Star Wars fanart. Anti-copyright people focus too much on the latter without addressing what I’m supposed to do about Disney.