I think that food insecurity meaning literal hunger pains is way too low a bar for the US. That number should be literally 0%. Food security for us should mean food that is healthy and excellent.
If you surveyed specifically on whether people had access to fresh produce you'd get a much lower number.
Then if you look at the very low security group, roughly 4% or 5 million people, it gets really worrisome. 32% of households said an adult had gone an entire day without eating anything.
And I think this is compounded by something like Covid-19. 85% and 95% of the low and very low food security groups said they were worried food would run out. What happens to them when people make a run on the stores like this last month? Their ability to buy food is strongly tethered to the day of the month when their EBT card is reloaded.
I think a lot of this is subjective, and globally the US is doing quite well compared to all countries. But I suspect we do poorly compared to other industrialized/advanced economies.