Aye, which is what makes the debate fun (at least when both parties are debating in good faith).The Flat Earth Society does not constitute humanity.
I agree, there'd be chaos. Of course. But IMO, the difference between fake and real is not a a mere quantitative difference, say between 80% convincing and 90% convincing. It's a qualitative difference. One could actually say 'well what can I do that would convince you?'
Regardless, it's an intractable question. Neither of us are really wrong.