Yes, that is fair. But I suppose I took it as an unstated assumption that there's really only one type of ad that we will never be able to programmatically bloc

Yes, that is fair. But I suppose I took it as an unstated assumption that there's really only one type of ad that we will never be able to programmatically block: ads that are woven seamlessly into editorial content. If the ad blockers of the world win, what will be left is ads that don't really announce themselves as ads.