A locust has no choice but to devour: eat everything in sight. A bee has no choice but to produce honey: to plan ahead by storing nourishment.
A human has a choice: he can either devour–destroy–everything in sight, or he can plan and save for his future.
In most cases, the best way to address an angry, hateful message is with No Response. Hate needs hate to fuel itself and keep itself alive. Like a snake eating its own tail it soon becomes nothing.
“No Response” is different from “No Action.” What would constitute “action” in each case is as varied as there are hate-situations. Attempting to understand what caused the person’s outburst in the first place is one possible, more mature solution.