You're like dinosaurs stuck in a tarpit; all these wailings, whingings, and whinings about your 'ad revenue' and how us ad-blocker users are 'stealing your content' is just your death-song.
The title intentionally misquotes the NAA letter for sensationalism. Brave intends to replace publisher ads with their own. The NAA said "Your plan to use our content to sell your advertising is indistinguishable from a plan to steal our content to publish on your own website.". They technically said "use our content" in reference to what was happening and then compared it to and offline form of what would be theft.
All that aside, the whole argument about copyright infringement vs theft is that you're not depriving them of their original work or material gain from it. For Brave's plan to work, it would be doing exactly that. And yes, Brave has stated the intend to pay publishers a share of the profit on Brave's terms, all without publisher agreement. On what planet does that work, walk into a business, set my terms and they have to recourse but to accept? If Brave's plan is so great, they can do what others do and sell it and get a consenting agreement first.