The agreement is you watch the ads YouTube serves you. Why would that agreement have to include the amount of ads served? If you are unhappy with their business model you can always pay for premium or stop using it. Or you can steal from them, that’s what I do. I’m just not afraid to admit it.
There is no agreement. TOS is a notice not a contract. It's not stealing because it's public content, publicly accessible to anyone with the technology to do so.
If Google wants to make YouTube a service with actually binding contracts and not TOS notices no one reads or respects, it can put the whole thing behind a login and end un-authed public web traffic. They're free to do that but they won't because they know that would kill the site dead, and quickly so.
That’s not an agreement, that’s just YouTube doing whatever they want. Which they can—but then—I can just do whatever I want, too. You don’t need to imagine some sort of covenant being involved.
> Or you can steal from them, that’s what I do. I’m just not afraid to admit it.
I don’t even do that, I just watch it as-is. I just don’t need to imagine that YouTube and I have agreed to anything.