Gir, your "point" really goes both ways. People are more likely to go "AWWW!" when they here about how many chicklets are thrown into McDonald's meat shredders every day than the amount of people killed by famine/disease/war each day.
People often care about animals to the point of stupidity. Look at the movie Independance Day: the dog is running away from the explosion and narrowly escapes. The crowd breathes a sigh of relief. Forget the thousands of people who just died, the friggin' dog got away, it's all good!!!
If you want to devalue human life because we're a drain on mother Earth, that's fine and normal... if you're a friggin' plant. As humans we relate more to other humans; we're able to understand that every person killed in this disaster capable of thinking (there were plenty of babies), had dreams and ambitions and passions, just like you and me, had people they cared for and that cared for them. It is our species and we understand it best. If you want to tow in every dead cow and squirrel or whatever, and give them all graves, go ahead. Thing is, we can't find a dead squirrel and then contact it's parents and tell them how their poor squirrely died and give it a nice burial. Hell, we can't even give -our- people nice burials, masses of unidentified bodies are being burned in pyres or shoved in shallow graves.
Pretend you had a best friend who had a dog, and you knew them both very well. Would you be more stricken if the dog died instead of your friend? Because your friend is such a terrible polluter since he drives and has a refridgerator and all that crap?
This isn't even about how great we are or how terrible we are as a species. As a species it's simply common that we care about other members of it. If you find that weird or disagree with it or something... well too bad. You can dig for graves for all the cats that must've been killed.