Now that I think about it I have also wasted a lot of time on it. It deserves to be burned.
All this stuff tells much more about ourselves than some petty (yet highly valuable) company. And most people don't like the message. This is as much about forcing the company to make better product for its users (even if it means its eventual demise, which over long enough timeline is inevitable) as a very valuable introspection. We can skip that part and just hate more, but it would be a wasted opportunity, don't you think?
You can't beat FB through playing by their rules. Rather we need to change the game.
Since personally identifying data is valuable and companies like Facebook have made a business of cashing in on that value there is no way for you to be sure that they won't overstep any artificial bounds which have been set by law. If you don't want them to run amok with your data you need to make sure they don't get your data, first and foremost by not voluntarily handing it to them (i.e. don't use Facebook-the-product or any of Facebook-the-company's other products), second by making it harder for them to collect data through other means. The former is easy, the latter can be harder. Blocking Facebook assets at ingress points and in ad blockers only goes so far and is made more difficult by sites using material from *.fbcdn.net (e.g. react components, etc), not to mention those Facebook holdouts who insist on tagging photo's with your name etc.