That's the annoying part of it. They try to collect everything about me, down to my favorite color and the brand of tea I am drinking, and they can't even deliver a semi-relevant ad. Best they can do is to bombard me with shoe and riding classes ads for 6 month after I search for "weight of a horseshoe" and stuff like that. They kill the privacy, they make 99% of the sites unusable without an ad blocker, and at the end it doesn't even amount to them making relevant ads...
If I were you I’d be more worried that Google de facto controls whatever we’re calling HTTP these days than that they have a BigTable entry that ties a browser you once used to a preference for Earl Grey.
do you deviate from social norms in any way more significant than tea preference? Have you ever? No extreme political opinions? No fetishes? There's really nothing in everything big tech companies have about you that would be worse for you to have leaked?
I am worried by both. In fact, I am worried by more than these two things about Google, but listing them all would probably take this discussion way off course.