Google could circumvent this if ISPs tried this.
How would an ISP block ads coming in encrypted as normal content?
Either way that will never happen obviously; Why would an ISP “block ads”? They’re literally hosting Google hardware (specifically YouTube’s cache)
I guess they may be doing that to save bandwidth... They also have a tendency to offer features that few of their subscribers use, or even know about (some of their routers come with built-in VPN servers and torrent seedboxes).
In French: https://www.universfreebox.com/article/19260/Comment-fonctio...
"Pay 5 euros per month for the ad-blocker privacy feature!"
They could probably make a lot of money from this.