Collectivism holds that the individual has no rights, that his life and work belong to the group (to "society," to the tribe, the state, the nation) and that the group may sacrifice him at its own whim to its own interests. The only way to implement a doctrine of that kind is by means of brute force - and statism has always been the poltical corollary of collectivism.
Ayn Randthe important consideration is not your opponents, but yourself. It is bad to scream at them, not because it hurts them, they ought to be hurt, but because it hurts you. Anger is a form of recognition. It amounts to admitting that those people are important to you and that they have the power to hurt you. Actually, they haven't.
Ayn Rand