They do if their URL is misleading or is otherwise disguised. Also, it is common to click links without knowing ahead of time what the full content of the page

They do if their URL is misleading or is otherwise disguised. Also, it is common to click links without knowing ahead of time what the full content of the page is. That may not be ideal, but this is what it is. Ad blockers give users a layer of protection against malicious, lazy, or overeager websites. You seem to suggest users should just take it all or not visit, but that seems to only make sense if links advertised what users would be getting into (ex: visit this link and let us cryptomine you for content!"). Maybe that would be better and more honest, though I don't see how it would work with how people use the web today.