You can be obese and starving. Starving has to do with not getting proper nutrition! If you lived on potato chips and weighed 300 pounds, you can STILL die from starvation because your body is not getting the CORRECT nutrients.
Honestly, I don't think many people in America are starving, but that is BECAUSE of our social safety nets. Now, you may think these people are "bad" or whatever, but that is not a good enough reason for the government or us citizens to allow them and their children to starve or lack in things like vaccinations and other proper medical care and treatment. Then what happens when these people are flooding the hospitals because they're sick? Are you going to deny them medical treatment too?