Recently I have taken to reading Thomas Jefferson's Bible, and I'm in the process right now. I think it's fascinating, and it's exactly how I am forced by belief to read the new testament. It casts a light on it that I rarely have an opportunity to discuss with others, seeing as how most believe the Bible to be true, and the other portion believe it to be false and not worth the time or effort.
I agree, there are some glaring contradictions in the original poem, and in the new testament for that matter. For instance, the one criteria for being saved is believing absolutely that Christ was the son of God and was sent to redeem us all of our sins. Well, if that supercedes the heart condition of an individual-- if somebody can get everything else right, but still doesn't believe that--then they won't be saved? I call shenanigans.
However, saying that Christ started his own dogmatic religion in the same sense that the religion exists in the majority of the world today is a little dismissive. Consider this statement:
There are no absolutes.
It's impossible for this statement to be true, because it is itself an absolute. When you consider the philosophy Christ taught, it was essentially to free men from the rigid, bogged down legalism of the church at the time. Although from our cloud of millenia of progress it might seem simple, it musts have been extremely revolutionary to the majority of people at the time. The emphasis was on loving your neighbor as yourself, and loving God. So while it in and of itself is a religious doctrine, it was a religious doctrine demanding that people not get involved and bogged down with religious doctrine. To conflate such a doctrine with those that exist today, requiring absolute obedience to man and the church, with no participation or freedom of thought from its members, is disingenuous.
I won't deny that there are parts of the new testament that also somewhat contradict this overarching theme. But from an atheist standpoint, that's okay, because we're not trying to prove this is the perfect and undisputable word of God; rather, I am simply stating that the majority of church structure today is not only far different from that of the first century, but also from the philosophy of Christ himself. I frankly believe Christ's message started deteriorating even as recently as when Paul started his tour de Europe.
So while the messenger of the poem on youtube might be plagued by some dogmatic belief himself, when contrasted with the dogmatism and requirements of the church, I find little evidence demonstrating the two are the same or equivalent by any means. We all have dogmatic belief. The objective is to root out those that are repressive and demonstrably false to the greatest degree possible. While Christianity might not have done that, it was a clear and drastic improvement over the system in place in Christ's time.