Obviously a variety of thought within "Christians", but I think the main view would be that Zoroastrianism has elements of truth (monotheism, dualism, for examp

Obviously a variety of thought within "Christians", but I think the main view would be that Zoroastrianism has elements of truth (monotheism, dualism, for example), but not the "fullness of Truth". So, possibly one could consider that a gradient. May seem a little stubborn, but then again most people think their own worldview is best.