I do not recall ever hearing of an organized effort to ban ads. These days, good luck getting bipartisan agreement, especially with all the dark money in politics being legalized and normalized.

That said... The modern internet is built off many free services paid for by people who buy stuff from ads. It is hard to imagine a world without ads - many sites and services would disappear. Hosting costs money.

I could see a dystopia without ads where a government provides free hosting for citizens. That quickly becomes "thought police" when an authoritarian leading head of state comes in. If we pretend like that will not happen, I think we would have a much more wonderful internet.