The weapon of criticism cannot, of course, replace criticism of the weapon, material force must be overthrown by material force; but theory also becomes a material force as soon as it has gripped the masses. Theory is capable of gripping the masses as soon as it demonstrates ad hominem, and it demonstrates ad hominem as soon as it becomes radical. To be radical is to grasp the root of the matter. But, for man, the root is man himself.

Marx, Critique of Hegel’s Philosophy of Right. Introduction (1843)

All in all, that makes me feel much better about decrying the lack of emphasis put on "theory" and the "freedom" with which I call others assholes...