What makes something a threat or not is not the conclusions the recipient of the message jumps to.

Wrong. You might want to look at ''Elonis v. United States'' [1].

1. https://en.m.wikipedia.org/wiki/Elonis_v._United_States

Not wrong, because the case you linked does not conclude that what constitutes a threat (even in this legal sense) is what the recipient of the message believes.

It did conclude that it was a threat, and amongst the finer points of the case was that Elonis argued that the test should have been whether he intended the threats or not. The jury decided that a reasonable person would have perceived the accused comments were threatening.

Even a reading of a cursory summary of this case would have told you this. Did you actually read the outcome?

What. How does your reply have any logical connection to what I wrote?

I just showed you a case where a threat constituted the conclusions the recipient jumped to. Do try to keep up.