IMHO...Religion requires faith, without which many of the precepts that form the foundation of belief can not be proved. Without the faith, one might question things that the faithful might not be able to answer convincingly. Faith in God isn't debunk-able as, say AGW is. Atheists can not prove (to anyone but themselves) God does not exist, and believers can't prove to them He does. Stalemate. Faith bridges the gap, a bridge usually built by some life changing event.
Liberalism is religion the way Greek Mythology was religion. Logic and common sense can pretty much destroy it, but liberals are emotionally invested such that logic and common sense do not penetrate. Their emotion epitomize the term blind faith. In leftism, unquestioning faith is required or it falls apart. And liberals, within their means, are every bit as nasty to the unfaithful as are Muslim jihadists. The more excellent the counter argument, the more bile generated in the ranks of the faithful towards the bearer of truth, which is why liberal atheists are so nasty in their aims and disposition towards Christians. Liberalism is an ungrounded religion, which is why liberals are so angry and unhappy.
So true. My experience with a great many liberals bears this out. They cannot in any way bring themselves to disagree with or dare even criticize democrats or the democrat party. Absolute blind adherence and devotion that I find unsettling.
As a conservative, I can criticize policies of republican's and have done so, both extreme rightwing and moderate. However, some liberals I know cannot do this and will try themselves up in knots trying to justify the absurd and dangerous.