Going to be honest with you, and say I left FB over 1 year ago, over similar concerns, though got to thinking today, over fb facing off against various countries, like Russia and the EU, where the governments want them to hand over the data on people, and fb are refusing, now when I left fb, I will simply state, never go back.
But and a big but, fb only do targeted ads, and the govs wanted all info, Maybe fb was the lesser of the two evils, either way, I trust them both not.