Why is it illegal to yell fire in a crowded theater (when there's no fire).`? — Coben
A little historical information will help. There have been very bad fires in theaters, night clubs, and the like, resulting in very large losses of life. When someone smells smoke, sees the flames, etc. and sounds the alarm, people will all bolt for the door. No singledoorway can accommodate more than 3 or 4 people at a time. If 500 people try to get through a doorway at once, they will compact, trample and kill some people, and become an interlocked mass. If there is smoke and fire and many people, it is practically guaranteed that a good many will die where they are standing.
Similar disasters have happened at soccer and rugby matches, when for some reason people stampeded for the exits which were not wide enough to allow a mass of people to move through. In those cases, the deaths were from being crushed under foot and suffocating.
Sometimes doors have been
criminally locked or bolted shut, and then the loss of life was even worse.
So, walking into a theater where there is no fire and yelling "FIRE!" is likely to lead to a stampede which will probably result in at least a few deaths, for which the person yelling "FIRE!" would be responsible.
The recent El Paso shooter confirmed his intended targets were "Hispanics", and his actions followed hate speech from the POTUS directed against them. The connection cannot be proven, of course. — Pattern-chaser
I agree with you that speech can incite others to act. It isn't as simple as me saying "Kill Bill" and you rushing out and shooting Bill in the head. The El Paso murderer claimed that he intended to kill hispanics, and he did. I'll take him at his word that he did what he wished and intended to do. Whether or not the El Paso murderer committed his crimes
because he listened to one, two, several, or more speeches by Trump can not be proven, as you say. DT has attacked several groups repeatedly, and a lot of people get shot, so it's a bit difficult to disentangle one shooting from another.
Trump hasn't said anything as directive as King Henry II, "Who will rid me of this troublesome priest?" which inspired the murder of Thomas à Becket, Archbishop of Canterbury, in 1170. It's also not quite as inflammatory as "The first thing we do, let's kill all the lawyers" Henry VI, Part 2, Act IV, Scene 2. And it wasn't the King who said it. It was the character "Dick". Henry wouldn't have been helped by killing all the lawyers. Most kings and hip POTUS must needs all the legal help they can get.