"I don’t think ADOG (anthropic, deepmind, openai, google) is going to pay to crawl."

You seem to misunderstand. You pay or you die. There's nothing in between. Cloudflare will happily collect the tax. As does Apple (collecting 20B$ yearly from Google for the "tax"). Cloudflare's users also won't mind about how the company handles ADOG as long as they get a chunk of the cake by getting freebies and cheap services.