> only big companies benefit from our current copyright regime

You’ve never authored, created, or published something? Never worked for a company that sells something protected by copyright?

All my works are open source or in the public domain. I don't like copyright for a reason.

"open source" and "in the public domain" aren't like separate things from "copyright", they describe specific sub-sets of stuff underneath "copyright", which is a top-level category that establishes a meaningful definition of stuff like "your work(s)" in the first place

i.e. "copyright" describes a legal concept, "copyleft" describes a licensing concept

> Never worked for a company that sells something protected by copyright?

I.e. never created software in exchange of money.