It sounds like your main objection is with conflation of "irrational" with "wrong". It's helpful to describe an extreme fear of heights as "irrational" but from

It sounds like your main objection is with conflation of "irrational" with "wrong". It's helpful to describe an extreme fear of heights as "irrational" but from an evolutionary point of view it might in fact be correct because it keeps those genes that give the rest of the population a healthy fear of heights in the gene pool. I think these are different concepts and a person can be both irrational and correct in their behaviour.