How do we decide what a "true threat" is when we have no cultural consensus on what a "reasonable person" is?

https://popehat.substack.com/p/true-threats-and-american-cultural

True Threats And American Cultural Gulfs

When Should A Threat Be Outside of First Amendment Protection?

The Popehat Report
@Popehat I imagine a significant part of the country wouldn't find the Justices themselves to be "reasonable" people - but they'd definitely disagree on which ones.