In its response to Stossel’s defamation claim, Facebook responds on Page 2, Line 8 in the court document (download it below) that Facebook cannot be sued for defamation (which is making a false and harmful assertion) because its ‘fact checks’ are mere statements of opinion rather than factual assertions.

“Opinions are not subject to defamation claims, while false assertions of fact can be subject to defamation.

“The labels themselves are neither false nor defamatory; to the contrary, they constitute protected opinion.”

Facebook just blew the “fact check” claim right out of the water in court.”

https://wattsupwiththat.com/2021/12/09/bombshell-in-court-filing-facebook-admits-fact-checks-are-nothing-more-than-opinion/