There are people that don't use ad blockers these days? I'm honestly not aware of many besides maybe some of my elderly family members. Not that people necessarily declare to me upon first meeting their stance on ad blockers, but it's a common enough topic at work, with some of my friends, and with some of my friends/family when they ask my help figuring out if there's a reason their computer is slow. Many of the people that ask for my help with their computers are already using ad blockers too.

Granted I imagine there's a sizeable percentage of people that watch YouTube from a smart TV and don't have, say, PiHole configured as the default DNS server on their router.

And it's not that I'm against web services making money off of my page views, it's just that some of the ads out there are just downright malicious, and I don't trust advertisement services to properly vet them.