The point of part 1 of the movie, is that a faith as questionable as any other, was politicized to influence the outcome of an election, which it did. Those that won the election in contrast to the supposed tenants of this religion and the traits personified by Jesus went on a murdering theiving spree which had already been planned.
The intellectual debates about the exact origin of the christian myth, or in favor of denouncing other faiths, are obscurring the facts of what has transpired in the name of the former since the election was won on a faith based platform. IMO part 1 was important to the movie becasue it is in large part the reason criminal politicians and financiers go unchecked.
The fact that this thread has become about bickering faith issues proves that the abuse of faith works perfectly.