Regarding politics, I completely follow his argument: I don't identify with any party and like to think I'm evaluating each policy on its on merits and according to my personal beliefs. Which leads me to the other one.
I happen to be Catholic and strongly believe in the mental and societal framework put forth by that theology. However, I'm more than happy to discuss objectively with fellows of other faiths (including atheism) and will happily point out the common threads in seemingly opposite belief systems. Yet if others make arguments that I'm not in position to counter, I'm happy to let it go. My identity is deeply rooted as a Catholic, yet my security is not in being right.
There is a temptation on my part to put forth the argument that some religions foster greater amounts of insecurity, but I don't think that is fair to say. Pretty much every belief system has a version of the Golden Rule.
To take Paul Graham's argument just a little further, I would say that religion and politics can be misused as convenient mental shortcuts behind which to hide one's insecurities.