The early days of the internet didn’t facilitate trillions in economic value like it is now.
We can use that anecdote as inspiration but it really has no merit on the modern internet.
Neither does ads. The “trillions” in economic value are what's driven by the businesses using the internet for their business (say to order food, taxis, hotels, online games, etc.).
The ads-based internet generate only a tiny fraction of that value. In fact, it only generates the low-quality value for which people aren't willing to pay anything. Youtube is probably the only exception here, and in fact if they decided to go fully paid, then many people would probably still pay for it, like they pay for Netflix.
With all those additional trillions there should be enough overall wealth for everyone to afford a completely ad-free internet now more than ever.
Trillions of dollars of shit is still shit, but shit is at least useful for compost where ads are useless at best.