[madnak]

That's not true - we have plenty of choice. It is limited in many ways, but we certainly have it. At bare minimum we can take the position of bunny, who has no "choice" but to believe in Christianity but still accepts that his belief is ultimately irrational.

Certainly we can choose not to merely accept our first impression. We can choose to examine our thoughts, feelings, and beliefs, and become better, richer people for it. Most people don't bother - that makes them rational? No.