Are we as Christians conducting ourselves...?

...in such a way that we are making people resistant to the idea of God. Brendan Manning said “The single greatest cause of atheism today is Christians, who acknowledge Jesus with their lips and deny him by their lifestyle”. Does our lifestyle display the non-judgmental, kind, humble, tolerant lifestyle Jesus taught? If it was, would more nonbelievers be more motivated to study a little bit more and potentially develop faith?