You certainly have the right to believe differently than me. However, I feel equally intolerant of people who place the life of a dung beetle on the same level as a human life. The reason humans are deserving of morality is because we have the capacity to choose our own life; we are not creatures ruled purely by instinct. People can have hopes, dreams, ambitions. They can create their own purpose for which to live. Depriving them of the potential to pursue those ends is something I find intolerable. Animals, however, have none of these things. However interesting their anatomy and whatever physical strength they may possess, they will never have dreams or ambitions. They cannot create a purpose for themselves. Their life is a simple interpretation of instinctual cues, no different from a computer or other machine except perhaps in the attachments we form with them. And, as you hinted at, a pack of hungry lions certainly won't care about our hopes or dreams, not unlike a sociopath murderer. I see no reason why I should treat them on the same level as humans.
I did not watch the video for more than 30 seconds or a minute, so I did not hear people laughing. If that was what was happening, then those people must have been extremely desensitized to violence, which is probably a result of their culture and upbringing. I won't claim to understand such a culture, but perhaps some changes should be introduced if it is one that encourages violence. Violence against animals has been correlated with violence against humans, and while I'd rather not see either, the latter is completely intolerable.