Food insecurity != being underfed. Food insecurity is a measure of a person's subjective feelings about food. If an obese person reduces his consumption from 4500 cals/day to 4000 (i.e., from 9 cheeseburgers to 8) due to perceived financial strain, he is "food insecure".
If I cared enough, I'd also dispute your claims about education and health care as well.
It's not hard to check that everyone, rich and poor alike, receive more of each than ever before - more people go to college than ever before, and more people get medical treatments today that didn't even exist 20 years ago.
As for the rest of it, it's just complaints too vague to refute.
For the definition of food insecurity: http://www.washingtonpost.com/wp-srv/nation/documents/usda_r...
Go read this article to see a picture of two women suffering from food insecurity: http://www.npr.org/templates/story/story.php?storyId=9259254...
Citation showing that the average poor person is seriously overweight: http://webarchives.cdlib.org/sw1vh5dg3r/http://ers.usda.gov/...