Income is a dumb way to try to quantify poverty. As was alluded to in another thread, are retired NFL players 'unemployed' or in 'poverty' just because they're not working?
But the food stamp trend is troubling. Part of it is economic, but a big untalked about part is cultural.
Stigma was part and parcel of the food stamp program only a decade or two ago. Growing up, had my family ever been eligible (quite possible) we would've probably starved before applying. Maybe exaggerating. Slightly.
Anyway, accepting public welfare is much less frowned upon than it used to be. Plus the electronic food stamp cards make it a lot less tell-tale and intrusive.