As I understand it many or most of the old testament stories are metaphors that are very difficult to understand intellectually, but are meant to impart a lesson. The book of judges may have an underlying spiritual meaning, but the interpretation I was given is that it's an example of what a culture is like without a proper implementation of justice.

My personal opinion is that many Christians get far too absorbed in the old testament to the point where it overrides universal truths spoken by Christ. Especially in the context of supporting Zionism.