Everything you've ever put out on the internet has been bundled up (aggregated) and tied to you from many angles (your browser, your ISP account, your phone profile, you name it). Just about every site out there has been scraped for info and those little aggregated bundles every site has been collecting has been aggregated together. Everything you've ever searched for (clicked on or not) has likely been captured at many levels (from your browser, to your ISP, to your search engine, to any computer transporting the information between you and your destination). You have a profile and it is huge... and it is mostly available for sale.
Oh, and politics is finally catching up. Not to protect you, but to get in on the action.
While the worst case of what I wrote is unlikely (at least for now), the breadth is not. Just understand that every data breach out there is already having AIs training on the data. Figuring out who you are, no matter how anonymous you think you are being, is something that will soon be trivial.