What is your point? I've heard that fast food places had become way more expensive. So yes average Jane/Joe would have nothing left after covering basic expenses. Myself I do not go to places like this at all. We either cook at home or on very rare occasions go to some restaurants where I can get some really good food.
I think that guy's point was that it isn't cheaper to eat junk than to eat "good and healthy" food.
I think that this is big distinction between USA/Canada.
Junk is way cheaper than healthy food if you buy it in the stores vs going to fast food restaurants. But yes almost everything is less expensive in the US.