We have copyright laws to promote creativity and invention.
It's also there so that you can't steal another's idea and make it yourself.
It's also there nowadays so that you don't steal money from people.
Piracy is stealing.
We have copyright laws to promote business, not the majority folk. Ideas can't be stolen. Ideas can be cloned. You're not stealing money, you're letting folk save.
With no copyright laws, everything is in public domain, and folk make things because they want to, not because they have to.