Unlike many countries, the burden of proof for defamation is on the accuser. You must prove at some bar (based on factors like celebrity status) that the other party spoke false information, and then in most cases you must also prove ill intent. You can’t usually win a defamation suit against anti-vaxers (for example) because they genuinely believe they’re saving people by spreading the misinformation they think is true.
We’re a VERY tough country for that kind of suit, and the First Amendment is cited as the reason.
Your understanding of US law is slightly off.
Unlike many countries, the burden of proof for defamation is on the accuser. You must prove at some bar (based on factors like celebrity status) that the other party spoke false information, and then in most cases you must also prove ill intent. You can’t usually win a defamation suit against anti-vaxers (for example) because they genuinely believe they’re saving people by spreading the misinformation they think is true.
We’re a VERY tough country for that kind of suit, and the First Amendment is cited as the reason.