I understand Youtube needs to make money, it's expensive to manage the infrastructure they provide. That being said, faulting content creators for the type of viewers they attract will just drive away content creators with a technical audience who use ad blockers. This will just incentivise creators to make generic content for the masses or leave the platform all together.

The only alternative would be for creators to make their own sponsorship deals, and insert ads in the video, which diminishes the value of Youtube Premium for those who pay. If creators start put messaging in front of all their youtube videos about disabling ad blockers, it could backfire, and be an advertisement that ad blockers work on youtube, and lead to people seeking them out.

Hopefully this is all a temporary measure by Youtube until they can block the use of ad blockers, but the damage might already be done if creators stop making videos or seeking out their own sponsorships because they clearly can't rely on Youtube.