There’s no such thing as price gouging for unnecessary goods or services.
If you don’t think the good is worth that price, don’t buy it plain and simple. McDonald’s is not a necessity. They’re going to price their product according to what they believe the market will bear.
Seeing “pushback on some of their prices” is one of the most basic aspects of the market. Fewer people will buy a product at a given price, and McDonald’s will adjust the prices to the appropriate level or they’ll fail.