> If you're a little guy, they'll just shamelessly take what you make

Like LLM scrapers?

> Copyright is what means a bunch of randos can't just copy all your work and take all the revenue from it. They can even undercut you

If copyright is abolished, nobody's getting revenue from views. They can resell your work for $0, or can try charging, but word spreads and everyone will seek the free alternative (yours).

Attribution is different, but covered by trademark. Or may be covered by trusted sources like internet archives which prove who was first.