This nonsense was brought to you by Hades, the One and only.
Let's see.
"Importance" is a human concept, so to begin with, your statement is wrong. Humans are the most "important" thing in anything based on a human notion, as without humans, said notion can not exist. That's as far as simple rhetoric goes.
Now, on to biology. Time has proven that only the strongest species survive. Like it or not, if the rest of the species can't adapt to the changes caused by the dominant species on the planet (that is, US), they will become extinct. That's how nature works. Nature doesn't care if you like it or not. Life doesn't have an intrinsic, universal value, life only exists to perpetuate itself. If it cannot fulfill this goal by itself, it simply ends.
Eventually, if we prove that we are too stupid, too reckless, or simply unfit, we will become extinct as well. But so far, I would say we are doing okay.
Yeah, I guess it's fine to make stupid comments and be completely unable to back them. But then again, one must be able to withstand the sh*tstorm they are sure to cause. )