Not that it matters, but I use the so-called "professional" version of Windows 10 (which is the most that individuals and small businesses can get). Besides, I do have sensitive personal data on my computer, such as my personal finances, documents, photos etc. And no, I don't use it to watch Netflix (have an Apple TV for that) and I don't play games.
You seem to be saying that consumers should not have any expectation of privacy when using their own computer with the operating system they paid for? If so, I could not disagree more.
Actually no, I don't use Facebook and I don't log in when using Google or Youtube (I have a Google account but rarely use it). But this is also besides the point. First, just because some other company violates my privacy doesn't make it OK for another to do so as well. Second, it's one thing to collect data from people who voluntarily use a free online service; it's another to embed what is effectively spyware in an operating system that I pay for and cannot realistically avoid using.
If people care about privacy a little bit, FB won't be 150B dollar company!