Totally agree that Facebook's label bypasses any nuance, but that isn't illegal and we can't make it illegal. It isn't defamation by the dictionary definition (it isn't a false claim), and it certainly isn't defamation by the stricter legal definition. Imagine what would happen if you could sue anyone for accurately quoting you but leaving out a piece of context. Could you sue a movie critic for a bad review that misunderstood the director's intentions? Could you sue for an internet reply that quoted only part of your comment and misrepresented your views? Could you sue a journalist for not printing every interview unedited in its entirety? Could you sue the NFL for stating that a team lost without explaining that a star player was injured at the time?

Edit: Actually, the fact check includes a lot of nuance and discussion, it's not just a "misleading" label with no other context. Read it here: https://climatefeedback.org/claimreview/climate-change-fores...