Are you sure about braindeath being a mental condition? My thoughts, confirmed by quick googling, was a medical-legal standard for death based on permanent death of the brain. As a person can otherwise be vegetative/comatosed or whatever, or like a liver can keep operating for a while etc.
As an insult I think it’s meant to be taken as “This is only explainable if you have no brain activity” not “you are like a living human with a different or damaged brain”.
I think sometimes when I try to point out that political violence underpins much of society people hear “violence is good actually”.
It’s frustrating because what I’m trying to point out is actually the opposite. Prostrating yourself lets other people use violence with no checks.