Its like people forget (or just don't care about) history.
The web started off advertising free.
THEN people moved in because they thought they could use the communication medium for a business opportunity.
NOW you're telling people not to consume from the medium that YOU moved in on.
Its a ballsy position :)
The web started off as a very limited network funded by universities and the military. You did not have to pay to host anything for the first several years.
Are you suggesting we return to that?
Images, animations, auto-playing videos... ads are much larger than 2KB. 2KB for the network overhead alone, maybe.
Anyhow, my primary reason for blocking ads is that I seriously hate animated stuff next to text I want to read.
And to be extra nice for you, I'll go ahead and do the same on all my friends devices too, since every last one of them uses adblockers. You wouldn't want them stealing your ad supported content would you?
I'll even block your website on every firewall I get my hands on, because believe me, there are no ads going through those firewalls.
If you don't want people "stealing" your content, put it behind a paywall and watch user numbers plummet.