We have two choices:
- We allow everyone to speak their minds and let each of us decide what we want to believe (and that is called free speech and democracy); or
- We let corporations like the ones who own Facebook, Twitter, and YouTube tell us what we can and cannot say and decide what is "truth" (and that is called totalitarianism).
Don't get confused. First, ignore Giuliani - he's an idiot. Then ignore Zuckerberg and his ilk, too - they want to be dictators of "the truth", and we really don't need such people messing with our minds.
We used to think that what is good and truth came from G-d, but lately we have tended to ignore His opinion.
And once you force G-d out of the picture (who by the way is the ULTIMATE "dictator of the truth"), you're on your own. That makes YOU the sovereign of your world and the arbiter of truth. Kinda scary, isn't it?
And I would guess that is why most people allow others to decide for them, so they won't have to be responsible for the outcome themselves.