Clicking a link is not consent. I have no idea what I am going to see until I reach the website. My browser has rendered the website and executed their JavaScript long before I've had any chance to even process what I'm seeing, let alone consent to it.
Clicking a link is equivalent to walking into a tattoo parlour. We don't infer that I consent to receiving a tattoo just by walking through the doorway. Stealing my attention with ads is less extreme of an intrusion onto my person than a tattoo, obviously, but it is still an intrusion.