Rastafari: A Collaboration of Multiple Religions?

This weeks assignment was to watch the following video ( http://www.youtube.com/watch?v=jCUy48bt3B8 ) and the comment on variuos symbols we find and what it says about Rastafarian beliefs. What I learned from this video is that Rastafarian principles come from a variety of religions. For example, one man named Ancient was taped saying that he wakes up at 3 am, 9 am, noon, and 6 pm for Psalms. (Or at least I think he said Psalms). The Psalms, as we learned, is practiced in the Christian faith, so already we see a bit of Christianity being incorporated into Rastafari. Ancient also explains that it is a daily ritual, which is very similar to the religion of Islam which requires its followers to pray five times a day, which I believe is called Salah. Sabath, which is practiced in the Jewish religion, is also practiced in Rastafari.

To further prove this point, I've included a picture on the left. I typed in "Rastafari" into Google, and this is one of the images that came up. This image shows that Rastafari is a religion about unity, as it so clearly says in the image.

What I find confusing, though, is the white and black hands touching. This suggests equality between races. However, in the youtube video there is a poster of a black "R" over a white "X" which is meant to symbolize "good over evil". This indicates that the white race is evil, so why in this picture are the two races uniting? Also, if white is viewed as evil, how does Rastafari claim to be a religion about unity? This seems ironic.