"I have been called arrogant myself in my time, and hope to e..." — Christopher Hitchens quote meaning

I have been called arrogant myself in my time, and hope to earn the title again, but to claim that I am privy to the secrets of the universe and its creator — that's beyond my conceit. I therefore have no choice but to find something suspect even in the humblest believer. Even the most humane and compassionate of the monotheisms and polytheisms are complicit in this quiet and irrational authoritarianism: they proclaim us, in Fulke Greville's unforgettable line, "Created sick — Commanded to be well." And there are totalitarian insinuations to back this up if its appeal should fail. Christians, for example, declare me redeemed by a human sacrifice that occurred thousands of years before I was born. I didn't ask for it, and would willingly have foregone it, but there it is: I'm claimed and saved whether I wish it or not. And if I refuse the unsolicited gift? Well, there are still some vague mutterings about an eternity of torment for my ingratitude. That is somewhat worse than a Big Brother state, because there could be no hope of its eventually passing away.