Dropping Google Analytics on a page is indeed precisely active sharing of data with Google; it just happens to use your own browser against you rather than sending the data to Google from the server of the website.

There's no "active conspiracy" needed as long as this kind of behavior keeps being normalized by comments like the above.

> Dropping Google Analytics on a page is not an active conspiracy.

It absolutely is that website deciding to trade data about their visitors in exchange for getting something for free. That's "active sharing" in my book.