>The United States allows for yelling fire in a crowded theater

I don't understand.

According to the article you yourself link to, the phrase, in the US, has been a metaphor for conduct not protected by the first amendment for over a hundred years.

All that seems to have changed is the exact definition of "clear and present danger".

Is there a case you know about where someone literally falsely yelled fire in a crowd and it was deemed protected speech in the US?

It was a metaphor used to defend calling protesting World War 1 and the draft dangerous lawlessness conduct. It is a horrible metaphor.

I would imagine any play about the Chicago fire would be an example, let alone firing squads.