We won’t starve for sure, but it puts another stressor on the system. The crunch will come during any financial dislocation that causes the EBT system to flash ERROR for even a few days. That will throw the road flare into the match factory. It won’t be a problem of food supply, but food delivery.
It won't take "a few days". Within an hour of people realizing that they can't get the "stuff" they are "purchasing" via EBT, they'll freak out and start fighting each other.