Karma, or what I refer to as the law of the harvest, means accepting the bad as equal to the good. I would see it as just a result of cause and effect. All effects are correct in respect to the cause. Acceptance of this is enlightening.
I hold the same view and can show you this through Paul's teachings. That few Christians see it in that perspective is not surprising. The flock only see what their Pastor learned in seminary. Heretics are excorcised.
To someone who is seeking the rewards of faith, I can logically take them through the major themes of the Bible and point them in the direction to learn for themselves.