If you opt out of having your WhatsApp share data with Facebook, Facebook won't deactivate your account, but they will make WhatsApp largely unusable for you.
I'm the best team mate, sending my buddy @fabsh into the danger zone to confirm my kills 👀😇😎 https://clips.twitch.tv/SlipperyObeseAnacondaPRChase-i4OkmHYKFtuq9x-B
Signal tried to use Instagram ads to display the data Facebook collects about you and sells access to.
Facebook wasn't into the idea, and shut down our account instead: https://signal.org/blog/the-instagram-ads-you-will-never-see/
This incident is tragic and it just reads like somebody wrote a bad horror movie. Unfortunately it actually happened? https://en.m.wikipedia.org/wiki/Goi%C3%A2nia_accident