Do not consider Collectivists as "sincere but deluded idealists". The proposal to enslave some men for the sake of others is not an ideal; brutality is not "idealistic," no matter what its purpose. Do not ever say that the desire to "do good" by force is a good motive. Neither power-lust nor stupidity are good motives.
Ayn RandWhat I want you to understand, is the full evil of those who claim to have become convinced that this earth, by its nature, is a realm of malevolence where the good has no chance to win. Let them check their premises. Let them check their standards of value. Let them check - before they grant themselves the unspeakable license of evil-as-necessity - whether they know what is the good and what are the conditions it requires.
Ayn Rand