Does being a Sinner still 'work'?

David Fitch discusses the issue of whether telling people they are sinners still 'works' in a postChristendom age...

Traditionally, the first move in evangelism is to convince the non-Christian that he or she is a sinner in need of God (or that he or she is deserving of God’s judgment and going to hell without Christ). “You must admit you are a sinner in need of God!” We evangelicals inherit this ‘starting point’ from our Reformed theology (which for many reasons starts with the depravity of humanity). This starting point was effective in Christendom where so many were determined by the ever-present Western guilt derived from the Roman Catholic ethos of the European medieval time period. This guilt however is waning in the new cultures of post Christendom. As a result, some of our evangelistic techniques must go to greater and greater lengths to prove to the non Christian that they are indeed sinner.