2) The site tells you, "hey, we see that you run adblock. If you want to consume our content you have to disable that. If you don't want to disable your adblock, bye."
3)You still go ahead to consume the content.
In what universe this is OK?
They didn't give it to you. They put a wall and said "You cannot pass this wall with adblock turned on". You decided to circumvent it. Because...?
Their "wall" as you describe it is actually just client-side code which runs on _my_ computer, not theirs, so I get to decide how it executes. It would be completely different if the "wall" was on the server side of course (for example, a paywall).
If it's on my computer, it's under my control. Just because it came from their server does not mean it has any rights on my computer at all. They're not entitled to my computer.