Mark Zuckerberg has a 7-point plan to eradicate "fake news". You can read about it here:
I have a better, single-point plan - AVOID FACEBOOK !!! Even the "valid" stuff on FB is just gibberish.
If you really have "friends" and relatives, go visit them in person. That is not only more satisfying, it also makes it harder for Zuckerberg and his ilk to spy on you and sell your personal information for their profit.
By the way, Mark, thanks for starting to wear a suit. It's emblematic of what you seem to have become - just another empty suit in love with his riches.