We only see conviction when people feel threatened. People claim there are certainties so they don't show weakness. People who claim scientific theories are certainties either don't understand them or are deliberately misrepresenting themselves to defend their point. I imagine this applies to the Bible as well. At this point very few people believe the Bible word for word, but many pretend they do to defend their religion.
I have read the bible almost cover to cover, and have gone over contradictions. It is my personal opinion that for almost every contradiction, there is a tangible explanation. There are only few questions I truly wrestle with in my own faith and yes some came from skeptics.
I am not afraid to challenge my religion or my religious beliefs. I just don't see why I have to lose high-ground for something I consider true by virtue of an overwhelmingly convincing explanation.
I have been properly challenged in my faith. But many times I have seen people throw "Contradictions" only for them to amount to nothing when digging into proper studies of the questions.
As for evolution, I see the complete opposite. The creationist community is offering important arguments to the theory, yet the first reaction people have is to spit on the challenges. People pretending evolution to be sacro-sanct truth, people considering me an idiot simply because I wasn't in any way convinced by it. Stuff like the graph you posted basically a self-inflating glorification of "data". It's often not science, it's storytelling.
That's my honest opinion about it.