You admit, ipso facto, Google knows, and the advertiser knows. That they don't serve it on a silver platter is just a detail.
Don't give your permission, how? Decide what conglomeration has access and which doesn't? Geemenie, we can't get people to stop using 123456 as a freaking password. These devices, IMHO, are predatory! Yeah, we'll disable them.
Then the voice recognition and auto-recognition software in the AV system in the living room party will rat out all of the participants. We have to change this opt-out mentality, as if everyone has tacit permission to begin with. Who, when, ever does anyone ever get anything like "serious consequences for failing to comply with such requests" when law enforcement barely knows their shoes from shinola? It's grab first, and don't audit later.
You trust these people, and they are stealing you blind, and will continue to do so until it becomes very difficult for them to continue. Google didn't get rich by hiding people's data. Didn't happen that way. If you work for them, you're part of the problem, IMHO.
Yeah, tie things up in the legislature. How many other blocks do you wanna throw up before it becomes a moral issue for you?