You know as well as I do that that will never happen and would probably destroy the economy. As bad as these companies are, flat out killing them is not a good idea.
Serving ads is doesn't create any value. By now, it's just a tax to be payed to google/facebook.
Why do you think banning online ads gonna destroy the economy?
These internet companies don't even pay a lot of taxes, we allow them to move profit across jurisdictions to optimize.
I really want to see a society wide experiment on banning ALL forms of advertising, be it digital or physical.