I love when people compare European countries to America, failing to recognize scale. Denmark’s fast food consumption is significantly lower than the US, requiring significantly fewer workers. Multiply the wage increase by 3-4 more workers per restaurant, and, probably 10x number of restaurants per capita. Add that with only a nominal increase or in some cases, even a decrease in gross revenue. There’s a fast food restaurant on every corner in the US, and a lot more competition in the variety of restaurant choices as well. Your comparison isn’t analogous.