I hate ads as much as the next guy, but without ads get ready to start paying for things. You go to a news website, sorry you need to login and hand over your credit card to access anything. Youtube? Sorry you need to login and pay up to watch anything. You want to Google,Bing, Duckduckgo something sorry you better pay up can’t sell you data to advertisers anymore.
Not saying this is necessarily a bad thing but it will fundamentally change how the internet works and it potentially could limit informational access to poor people.
Still end of the day the server bill has got to be paid.