Should Christians be shaken by brilliant atheist philosophers like Graham Oppy?

Mike's response: (1) It used to shake him but no longer. (2) When we don't understand an issue, we defer to respected authorities — that's understandable. (3) It's "at least a tie": Alvin Plantinga is equally eminent and theist. (4) Graham Oppy is not a typical internet atheist — he actually acknowledges respectable arguments for God's existence; he just disagrees. (5) Plantinga argues atheists have something wrong in their noetic structure/reasoning (consistent with Christian anthropology of sin distorting reason). (6) Smart people can be very skilled at talking themselves into weird conclusions — intelligence does not guarantee correct conclusions. (7) The evidence for God's existence and for Christianity is overwhelmingly strong; objections are usually nitpicky or misrepresentations.