Have you considered that an automatic response might have a large impact on what you believe? The reason people don't see the lack of logic in their beliefs is because their emotions don't allow it.

I would say that you are overvaluing the effects of emotion on the initial decision, and you are ignoring their emotional response to their own rationalization.

There's a video floating around of a guy who instinctively reacted to a threat by hiding behind his significant other. He reacted in fear. Now comes the rationalization phase: He tries to understand the act he instinctively performed. Rationalization is the act of applying his philosophical model to his actions. He evaluates his behavior against the expectations of his model.

He could subscribe to a philosophical model where the sanctity of his body is greater than that of hers, in which case he could rationalize that his actions were good and proper. (He would then experience the emotion of "pride" that he followed his philosophical model correctly.)

He could subscribe to a philosophical model where he is expected to protect other people from harm. He would then rationalize that his actions were improper. (He would then experience the emotion of "shame" for falling short of his idealizes principles.)

(It is important to note that we are talking about a fraction of a second between the unconscious act and the rationalization of that act: the actor is feeling "pride" or "shame" at his action before his significant other has even realized what he has done. His initial, instantaneous reaction may not be controllable by his philosophical model. He might initially flinch behind her in fear, realize his error, and move to shield her from harm. Or, he might deliberately abandon her, and seek better protection from the perceived threat by fleeing. The point is that within fractions of a second, his actions are being influenced by his philosophical model. The "automatic response" you are talking stops being relevant as soon as this has occurred, and the philosophical model becomes the driving factor.)

In both cases, the initial act is identical, sparked by an unconscious, unintentional process. "Amygdala hijacking" may, indeed, be responsible for this initial act, but it is not responsible for the differing effects. The difference in outcomes is due to the conscious, philosophical model held by the actor. Philosophy plays a big part in driving emotion.

I am uninterested in discussing the conditions that are, by definition, outside of the will and control of the individual. My interest here extends only to those things we can consciously affect.