Oh there are huge problems with my viewpoint - I wouldn’t even say it’s rational lol! I think that’s probably why I have trouble with the great rational arguments like yours (and many others in this thread).
I didn’t know there was a proper name for the 80/20 rule, thanks!
AdAway (F-Droid) will do the same but on-device (so it works everywhere), and if you’re rooted it’ll do it without the VPN by directly updating the hosts file.