[pessimizer]

You should generally dismiss anyone who can't consistently predict outcomes over their chosen class of things they study better than others who have no familiarity with their theories. Ask the better predictors if they're intrigued by any of the ideas of the bad predictors if you want to look for reasons to redeem the dismissed.

> Is there no value in observing human behavior?

The current paradigms of behavioral science aren't the only ways to describe the observation of human behavior. You could in a similar way defend astrology by saying "Is there no value in tracing change over the passage of time? Does the origin of a thing say nothing about it? Is there no value in looking up at the sky, in the stars? Is there no wisdom in the legends of the past?"