A lot of false conclusions here.

• Groceries stores are now cheaper than fastfood / restaurants? That was always the case! $50 of food at the grocery store will always go farther than $50 at a restaurant.
• It isn’t just the higher costs turning people away from McDonald’s. It is how shit the food has always been but now at even smaller sizes.
• You can find better deals at actual restaurants not just rival fast food chains.