Child abuse is not speech… I don’t understand how it is even necessary to explicitly say this. :-/

So it's not possible to insult or threaten somebody - or in this case a child - during a speech according to you. You need to say this explicitly, because people usually think otherwise. Do I need to send you a random Trump speech to prove it to you, that you just moved the goalpost?

Yes, it is possible to threaten or insult somebody, but this would not cause brain damage.

You cannot cause cellular damage to a human’s brain by talking to them.