Paranoia claims suggest unfounded concerns but Google's misuse of private information is well known.
The accusations are certainly well known (https://en.m.wikipedia.org/wiki/Privacy_concerns_regarding_G...).
Whether anything here constitutes misuse is a matter of both personal opinion (yours being very well known of course given your thoughts and comments about Google) as well as various laws but that doesn't make any of it a universally accepted truth or standard.
In my case I'm much more worried about security than privacy, and far more willing to trade off the privacy (more targeted ads) for the increased security - Google's infrastructure is way more likely to be properly secured vs. Joe Random wearables startup, or even Garmin, as a recent example...
There are economies of scale to security just like with anything else.
[0] https://www.washingtonpost.com/technology/2020/07/31/google-...
See https://www.androidauthority.com/blue-mail-play-store-114347...
This is called an "oops". Mozilla is well aware of how Google "accidentally" harms other companies repeatedly to gain an advantage: https://www.zdnet.com/article/former-mozilla-exec-google-has...
They might not use it maliciously today, but they could create a pretty good clone given the details of your life they have collected and continue to collect.
I want to ask the inverse of this question. What can Google do to make you comfortable with their services while still being primarily an advertising company?
Some ideas I can think of:
1. Delete your data once it is no longer relevant for advertising (I think they already offer an option to delete data after some time)
2. Not sell any data to third party, and make strong claims about this that can be legally challenged.
3. Keep data encrypted so that data breaches or even malicious actors within the company can not access the data.
4. Anonymize user data so that a business who acquired a customer won’t know why a {name, shipping address, product, price, credit card, email} was targeted for this advertisement and was successfully converted to a sale through that advertisement.
5. Not offer suggestions/data/feedback to advertisers on how to exploit vulnerable target audiences (Example: help Casinos target gambling addicts 5% more efficiently by doing X,Y,Z changes)
6. Build a track record of legal challenges and pushback against governments to show that when they claim that data is deleted, it really is deleted.
I am not sure how many of these Google already has done - but if they are doing any/all of this, they aren’t being loud enough about it. If one has to read through 200 pages of terms and conditions to determine what they do, people will just assume the worst and be paranoid.
The entire point of advertising is to emotionally manipulate people into making purchases. Targeted advertising requires gathering and abusing data about people.
If they wanted, they could create or destroy businesses based on the data they have. Let's say they want to create a competitor to a small pop-corn stand. They could see the profiles of all people who go to that existing stand and make it look like something they wanted (eg. based on their YouTube history). They could check the paths they take daily, or the route they take to that stand and put their own in a better spot (eg. based on location history). They could only open the stand or promote it when people are really craving, for example after work or after a gym workout (eg. from the Fitbit data).
You get the point, the idea is that once you have all those insights into a mass of people, you can easily control them into buying your product or doing what you want them to do, while they think it's their idea to do that.
In general, people are very easy to influence. If I just mention the words "FIFA 20 on PS4", you are very likely to have all those thoughts about gaming and maybe actually want to start playing FIFA, even though before you had absolutely no intent to do so.
I like the idea of tracking stuff for myself, but it doesn't seem possible without evil cloud at the moment. Maybe with apple watch?