I love dogs too, but again, why are people up in arms in the US over one dog, and not over the deaths of people? Why do people care so much about that dog but not about all the dogs euthanized in the US? Why is THIS the one thing that people are SOOOO mad about?? Sorry, but 'it doesn't have Ebola' and it was still put down, doesn't really cut it when ALLLLLLLLL the other stuff is happening...
Well to answer your question, as best as I can at least, it has to do with what people can handle dealing with in the moment. If they see "the one," the poster child, so to speak, it's that particular story they hone in on--they are relating humanly to that particular tragedy. It doesn't mean that they don't care about the others. But this is the one brought to their immediate attention and senses. If you took most of any of these same individuals to any number of tragic scenarios of needless dog killing, or the horror of God knows how many people's suffering in Africa or India, they would indeed be moved. But it's hard for people to take even in small doses. They relate, in general, to one person or being at a time.
We just can't handle being bombarded with human tragedy, and for those that do deal with it on a daily basis, they can't for long in most cases, without a break from it. Some can hunker down if directly in the environment, while others become numb or collapse without a break from it. We are built to only stand so much. Yes, it may vary from individual to individual; but PTSDs indicate that in general, most people can only take so much psychologically before they crumble. So humans seek to self-protect. If they are faced with something that is somehow distasteful to them, they react to it, and for a number of folks, they will react quite passionately. They will not, however, generally take on and digest too much at one time along those lines; b/c of their inherent need to self-protect.
To be completely honest with you, there are times I do this when listening or watching the news, for my own sanity. I still listen to the news. There are times, however, when I am so stressed or just exhausted, and I just don't have it in me to watch anymore local or global suffering. I will rest, even pray/meditate, have a glass of Merlot, go running at the track or bounce myself into a mad sweat on the rebounder, and then re-charge, and return to it later. I don't believe this is "not cutting it." I believe this appropriate and even healthy coping.
Now, if I never wanted to hear about the other stuff and lived with my head in the sand, that would be different. If I allowed myself to become totally "me" focused and forget about the world around me (perhaps a chronic issue for a number of Generation Y people), then it would be a problem. If I was so sucked into all the global human tragedy that I could not get up and go about my daily business or go to work or take care of my own activities of daily living, well, yes. That also would be a problem.