Well maybe you never had the need for privacy. Fine with you, not fine by most people. Or you are oblivious how previously quite good tool for integration with remote friends and family got progressively worse to the point where its utter ad-infested and bug-infested piece of crap (to be fair FB was having tons of bugs since beginning, they just didn't improve on that front, I can easily hit 3-5 of them within a minute of casual use - latest firefox with ublock origin).
No company sliding down so much has received much love. Not sure what is there to not understand. Oh yes and owner is clearly an amoral person with strong sociopathic traits hellbent on making humanity worse off long term, not unique but the same applies and compounds.
No amount of self-serving VR progression or some open source libs can anyhow annulate that. Morals is something a lot of people value, and lack of it gets appropriate reactions.