Take a look at the demographics (source: USDA):
White (non‑Hispanic): 9.6%
Black or African American (non‑Hispanic): 26.7%
Hispanic (any race): 16.4%
Asian (non‑Hispanic): 4.5%
Native American / American Indian & Alaska Native (non‑Hispanic): 20.1%
Native Hawaiian / Other Pacific Islander (non‑Hispanic): 11.8%
Two or more races (non‑Hispanic): 12.9%
So, of all SNAP benefits, over a quarter are paid to blacks even though they are only 13% of the population.
Native Americans are 2% of the population, but get 1/5 of the SNAP benefits, too. Interesting.
FWIW, the woman at the store complaining was white, and very overweight. It didn’t surprise me to see the kind of food she was ringing up.