I have admitted that I am a MMA entusiast/fan. So how can a person who is trying to promote peace in the world love a "violent" sport?

The answer is simple: intellect

People get knocked out in MMA not murdered. After the fight is over the fighters usually pat eachother on the back. It takes a quick thinking mind to be a good MMA fighter. The sport is atleast 50% mental. Some of the best fighters are analytical (cerebral) and/or spiritual. e.g.: Hendo, Machida, and Fedor. The fighters also have to psychologize (psyche) themselves up, the training is not just physical.

All these words and their meanings are implicated with MMA: strategy, psychology, intellect, skill, stamina (both mental and physical), power, speed, health and fitness, technique...