"food insecurity" is an extremely broad brush, and has nothing to do with abundance. Many homes where members of the home are obese qualify as "food insecure" because they don't buy fruits and/or vegetables.
The USDA doesn't ask why, they just ask if there are fruits/vegetables in the house, and if the answer is no, they mark the home as "food insecure".
Another questions is whether you worry that you might not have enough food at some point in the future YEAR.
Frankly, the metric becomes obviously meaningless once you read all eight questions.