Ayn Rand -

It is obvious what the fraudulent issue of fascism versus communism accomplishes: it sets up, as opposites, two variants of the same political system; it eliminates the possibility of considering capitalism; it switches the choice of 'Freedom or dictatorship?' into 'Which kind of dictatorship?' -- thus establishing dictatorship as an inevitable fact and offering only a choice of rulers. The choice -- according to the proponents of that fraud -- is: a dictatorship of the rich (fascism) or a dictatorship of the poor (communism). That fraud collapsed in the 1940's, in the aftermath of World War II. It is too obvious, too easily demonstrable that fascism and communism are not two opposites, but two rival gangs fighting over the same territory -- that both are variants of statism, based on the collectivist principle that man is the rightless slave of the state -- that both are socialistic, in theory, in practice, and in the explicit statements of their leaders -- that under both systems, the poor are enslaved and the rich are expropriated in favor of a ruling clique -- that fascism is not the product of the political 'right,' but of the 'left' -- that the basic issue is not 'rich versus poor,' but man versus the state, or: individual rights versus totalitarian government -- which means: capitalism versus socialism.

Wretchard -

The most dangerous political movements are those which take on the aspects of religion. They claim the protection of faith by pretending to speak to eternity on the one hand, while practicing the most immediate kind of power grabbing on the other. It’s no coincidence that socialism and radical Islam are the chief contenders for absolute power. One is a religion pretending to be a political movement and the other is a political movement in the garb of a religion.

Judge Alex Kozinski -

The Second Amendment is a doomsday provision, one designed for those exceptionally rare circumstances where all other rights have failed – where the government refuses to stand for reelection and silences those who protest; where courts have lost the courage to oppose, or can find no one to enforce their decrees. However improbable these contingencies may seem today, facing them unprepared is a mistake a free people get to make only once.