Hey so, uh, can we agree that telling people (online) that they should be "killed violently" is uh. Not cool?
Even if you strongly disagree with them? And feel very strongly about the issue you're discussing?
'cuz I saw someone say this to another and. Listen. I don't agree with the other person. And I realise that in further discussions they may have been rather unpleasant. But telling someone they should be "killed violently" when they disagree with you is also not okay. Especially when, up to that point, they have been perfectly polite and unprovocative.
Let's all just be polite, maybe? Just block the person and move on. Just ignore them. Delete their message. You don't have to be aggressive or mean or unpleasant.
You don't owe people a reaction.
