The U.S. Constitution grants some of the strongest guarantees of free speech in the world. Most other nations have laws limiting speech that would violate our Constitution. Forcing these platforms to play by our Constitution is a big win for the entire world, because Facebook routinely over-moderates topics of public interest in places like Iran, too.
https://www.oversightboard.com/decision/FB-P93JPX02/ https://www.oversightboard.com/decision/IG-2PJ00L4T/
They are censoring people _everywhere_, but American snowflakes would rather protect their sensitive ears from unpopular opinions than allow everyone to speak freely everywhere in the world.