It's amusing how much ads hurt, once you're weaned off of them.
Even with traditional TV, growing up, I didn't really mind ads. Then I setup MythTV years ago, and had commercial skip... and of course just downloaded things without commercials too.
When I'd visit my parents back then, any commercial felt like intense agony. So this isn't just about the web, it's really about useless annoying juke being fed to you, when you're used to not having it.
The closest I can compare it to, is once I rented an airb&b which was under a freeway, beside a bridge, and adjacent to another freeway. Yet after a while I just sort of got used to most of the noise.
I wonder if the CEO of Mozilla doesn't use adblock, and just doesn't, literally, understand.