The common motivation for ad-blocking is to prevent third-party tracking (the discussion here is about first parties proxying that tracking), JS attack surface, cryptominers, auto-playing videos, etc. - not to prevent advertising per se. Back when Google sold text-only ads, people were quite happy with them for doing it.
> Back when Google sold text-only ads, people were quite happy with them for doing it.
Those are some rose-tinted glasses. People on forums like HN were always annoyed that they looked like navbar links and you were only clicking them out of confusion with actual links.