The kind of person who methodically blocks ads (such as myself) overlaps strongly with the kind of person who, if they couldn't block the ads, would intentional

The kind of person who methodically blocks ads (such as myself) overlaps strongly with the kind of person who, if they couldn't block the ads, would intentionally avoid or boycott the product being advertised out of shear spite, so it's no real loss to the advertiser. I suspect that if advertisements were to be made absolutely unblockable, the amount offered per ad view would probably decrease proportionally and creators would keep roughly the same income as now.