The Eight Degrees Of Ignorance And Stupidity
I suggest the root cause of some of this rage is composed of two elements: power-lust and simple human stupidity.
I believe many people fail to recognize how intertwined is the lust for power and the enabling forces of stupidity. Stupidity can be manipulated to achieve that power. It is said that money is the blood of the powerful. Yet, why spend money when too many can be so easily controlled or recruited for free simply by instead appealing to ignorant or stupid individuals.