Christianity is the belief and world-view that a man who lived and died in the Roman occupied east coast of the Mediterranean is/was a human incarnation of a deity. Evolution is a scientific model that attempts to explain the processes and mechanisms behind the diversity and history of life on this planet. I don't see the two as "polar opposites on the same spectrum" but as two completely different things/ideas/concepts. Neither of which is altered by the acceptance/belief or even support of any individual.