Such Christians assert that the assumptions they hold, assumptions consecrated and guarded by the majority of what constitutes mainstream/orthodox Christian institutions, are the only live wire to reality. These assertions are then supported by the further assertion that metaphysical assumptions that question or challenge tradition/orthodoxy are mired in grievous error.
On a personal note, I would likely be far more open to traditional/orthodox assumptions if they were not consistently undermined by a mortifying lack of discernment by those who continuously proclaim such assumptions as irrefutably based on reason, logic, and common sense.
Put another way, I sincerely wonder why those who profess steadfast alignment with reason, logic, and common sense routinely falter and fail in basic and rudimentary discernment, particularly when it comes to personal freedom, evil, love, honesty, and repentance.
Yes, yes, we are all fallen and limited. No one bats an average of a hundred when it comes to discernment. Yet there must be a point at which such excuses become threadbare and embarrassing. A point at which one must at least begin to question why one cannot live up to the reason, logic, and common sense of one’s professed assumptions.
The individual is certainly part of the problem; however, the problem also likely spills over into the assumptions one holds as rational and logical, as the veritable epitome of common sense.