Agreed. I personally want ads to go away entirely and have zero qualms about blocking all ads I can.
But his explanation makes sense to me. I would not want to work on an adblocker, even for loads of money. I don't want to spend my days working out how to undo somebody else's work, knowing they will then try to undo mine, no matter how much I dislike their work. It would be stressful and I would be miserable. Maybe someday it would pay off by helping us get toward a world I'd prefer, but if not, or until then, it would just feel like I was wasting my own energy and someone else is wasting theirs, when we could both be building cool new things instead of fighting each other.