Let's start with the fact that Judaism is not the original religion of the Jews. Before Judaism, the Jews were just like the surrounding tribes – polytheists. The adoption of a single faith can be attributed to the time of Kings David and Solomon. There are mentions of things from the preceding period that contradict monotheism. For example: the quote I already provided, stating that "Man has become like us," mentions of Abraham's sacred grove, Moses' burning bush, and the golden calf.
So, it's foolish to say that Judaism is the original faith of the Jews. They simply eradicated most of their pagan customs (but not all).
Therefore, paganism can be considered a much older religion.
Regarding the non-violence of the Orthodox Church, read the history of Siberia, the period from the late 19th to early 20th centuries. There, forced conversions of indigenous people to Orthodoxy were common. And what about the struggle against the Old Believers? And the intolerance towards other religions?