Despite that, it is true that American poor are not as poor as most of the world. That's not to say that we should ignore our poor... nor that there is really anything morally wrong with the poor. It also doesn't show anything for the poor having equal opportunity... which is the real hearty stuff of debate.
But it does show the potential a capitalist system has for at least making sure people are fed... provided it has a robust economy and that the poor are visible enough that people wish to help them. Government programs, of course, have their part in all this.
But in general America isn't doing so bad for taking care of its poor. It could do better maybe. But it's not the huge failure some make it out to be... certainly not compared to say North Korea.

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"Man lives in the sunlit world of that which he believes to be reality. But unseen by most is an underworld, a place that is just as real... but not as brightly lit... A DARK SIDE!"
-opening from Tales From the Darkside