Google lies through their teeth, which certainly puts them in a class with Facebook, but they have clever dodges, such as saying they don't personally identify any things, but the whole point is that they don't have to, since their data science allows them to reconstruct all of that. Use any of their services at your own peril.I think you're confusing them with Facebook. Google has specific privacy policies in place that contradict your claim.
Of course, if you leave yourself logged into your Google account and then use Google services (like YouTube or Google Search, for example), Google does keep track of things you've searched for, video searches, the history of what you've watched (all of which you may delete if you wish or even turn off the tracking) but those details are yours and are not shared with advertisers (which I assume is what you are referring to).
Do note that there are exceptions to this, but they involve things like "endorsements", which, of course, involve you promoting yourself as an authority; in this case, yes, you are spreading your own info across the web.
Have there been leaks or errors in the execution of their policies? Sure; but Apple manages to fubar things, as well.
See, for instance, this article, which includes this simple statement:
And:NYTimes said:10 Tips to Avoid Leaving Tracks Around the Internet
“The number one thing that people can do is to stop using Google,” wrote privacy consultant Bob Gellman. “If you use Gmail and use Google to search the web, Google know more about you than any other institution. And that goes double if you use other Google services like Google Maps, Waze, Google Docs, etc.”
"I don’t like Apple’s phones, their operating systems, or their looks,” wrote Aaron Soice, "but the one thing Apple gets right is valuing your data security. Purely in terms of data, Apple serves you; Google serves you to the sharks."