And then what? Google will say that it's protecting critical functions from breaking and to piss off. Suddenly Google is a monopoly in the ad space because they have the predominant browser and let through only their ads.

they arguably are effectively a monopoly now. Them doing things like this isn't remotely new. They just got caught tracking everyone's smart TV usage. Nothing will happen to them until:

1) the Government decides to intervene.

2) Users give up and start using different services.

I'm pushing for #2, but then I switched off like a decade ago, when I saw the writing on the wall.

Were they tracking smart tv usage or were smart tv manufacturers using google apis to store their tracking data?

Both it seems:

"The most prevalent tracker, Google's doubleclick.net, showed up in 975 of the top 1,000 Roku channels, with Google analytics trackers showing up in 360, the researchers found." - https://arstechnica.com/tech-policy/2019/09/studies-google-n...