Have you watched at least 15min of the linked documentary? I am asking because I actually chose my language deliberately. I might be ignorant about extremely atrocious evils that happened on a large scale over the last 22 years, but at least to my knowledge and my subjective feeling, the systemic animal torture that is inflicted unto many millions of intelligent beings every day as shown in the documentary Dominion is the worst.
But I don't need people to share my opinion, you are right in that this is an important topic for me. What I just would like to happen is that people realize that eating animal products is evil enough to change their diet.