"This kind of animalistic intent totally negates everything about being a human"
I disagree to a point, I believe that this is what makes us human, (as evidenced by the rampant hate crime all over the world which stems from anger) but that does not mean that what ever we do as humans is right. And I wouldn't say anger is point less because it is a mode of communication if controlled (https://www.impactfactory.com/library/assertive-communication-anger-management-technique
).
I agree, however, that as humans we have the ability to think and perceive and to stop ourselves from behaving irrationally, but I think its a question of whether we want to or not, because as the quotation you gave says, "...grasping a hot coal with the intent of throwing it at someone else" we all want to hit people with hot coals when we are mad :)