I parked my Facebook account with a message telling folks how to reach me, then I unstalled the app and never logged in again.
No one can reach me there, but they know how if they need to.
Next, I flagged every email notification as spam. They'll try to pull me back in, they'll fail.
I will NOT play Zuckerberg's game, and you don't have to either.
^^ This is also how I dealt with Twitter when Melon Husk took over. That one I'll still ping occasionally to not lose the #InstructionalDesign connections I built there, but it's a rarity.
You DO have a choice, folks.