You think no one has ever had to spend time and money dealing with a picked pocket or a pothole on a road they drive every day? It’s not always as easy as you make it sound. Just like a lot of times you run an antivirus and it takes care of everything. Not always but sometimes your whole identity is stolen and it can be years later and you’re still dealing with problems. Guess you shouldn’t have gone to the gas station you always go to.
Why would sites go back to stock banner ads when they’re so easily blocked. Why do you think they stopped? The same culture you’re now defending pushed them out. Now it’s an arms race with stronger measures on both sides all the time.
You lose nothing by blocking ads today. At some point the bill comes due and either you can’t block them so easily or you lose access to the content you want to see. You’re pulling pebbles away from a levee and telling everyone it’s safe because nothing has happened.