Why? What is wrong with the idea that I can put work into something and be (somewhat) sure, that not someone else makes a lot of money with it before I can?
You're not arguing for existing laws here, you're arguing for the concept of copyright which I'm not opposing.
Current laws aren't about protecting the authors, it's about allowing a bunch of (non creative) people to manage portfolio of IP and get loads of money from it while ripping off the artists. That's why current copyright laws are bad.