Any standard that allows the listener to define the parameters of what a speaker may say is inherently anti free speech. The limits of free speech are, essentially, that one may not say something that is intended to cause actual, physical harm to the BODY of the person who hears it. One cannot yell "fire" in a crowded theater, unless there is actually a fire.
By defining "violent" speech as speech that causes an emotional reaction by the listener, this person explicitly endorses the repeal of all free speech rights in the country. I am certain she has never looked up the word "unalienable".
Once again we see 'science' used as a rubber stamp by unholy Leftists to validate their latest will-to-power. Thus everything from global warming to evolution, critical theory, multiple and ever evolving 'races' and genders,' and other such babble declared 'facts of science.' And since Leftists are self-evolved 'gods' they determine the meaning of 'unalienable.'
The babbling insanity, perversity, and other evils of our age are not due to America's plunge into the Red Queen's city beyond the Looking Glass but to the rise of Satan's City