Take guns for example. If you use guns, then you see a value to them and generally oppose mire restrictions. If you have been shot or robbed with a gun (or know people who have), then you dont see the value of guns and want more restrictions. If you are neither of these things then its easy to not care and say sure to more restrictions because they don't impact you and aound like they might provide some benefit, especially if just looking at the surfqce level stats. Same concept for abortion and online tracking/identity, especially once you mix in the think-of-the-children arguments in each of these.
What are the chances of an individual being negatively affected in a serious way?
Intuitively, I expect it to be so negligible that it isn't worth losing sleep over.
Perhaps if said individual is a politician and a television is compromised to record what happens in their home (or even bedroom).
Or perhaps compromise televisions in hotel rooms (politician or not).
The negative effect is the exact sky high prices that Americans keep complaining about. The point of all that advertising data is to nudge you towards accepting higher prices or buying things you otherwise wouldn't.
Every dollar of revenue in the advertising industry is money taken from consumers and spent on unproductive waste to get you to spend more money instead of anything like making a product better or investing in capacity or researching and developing new products.
Google makes money by making you spend more money. Facebook makes money by making you spend more money.
But nearly everyone has more urgent and pressing concerns like making monthly rent or a medical bill or gas money. So ACR on a TV doesn't register.