Certainty can lead to arrogance.
Arrogance invariably leads to condemnation. J.B. Phillips' Your God is Too Small . The title tells the story. And with that small God they seem bent on whipping the very world that God so loves. The only answer I have for this question is that we must struggle more faithfully, we must labor with more love to hold up a balance to what many see and experience as an oppressively rigid Christianity.