None of these web monetization efforts address the fact that the pool of [all consumers' discretionary income they'd be willing to spend] is likely a small fraction of the size of [all commercial companies' marketing budgets]. No matter how much you reduce the friction for having people make small tips to websites, there's just significantly less money to go around, so it can never replace advertising revenue. The on…
That first sentence took me a little while to wrap my head around and I don't think it's true or logical. In other words, even if it was true, I don't see why it matters. I'm building a company that plans to charge people to read things. The reading experience, without ads, is superior. It's worth paying for. That means that an ad free future is possible.
Given the current state of the web and the struggle that many media companies are having, I don't think we can take this for granted today.
Fingers crossed that you and experiences like Mozilla's proposed can change this.