McDonald’s very deliberately structured its workforce to be lower-skill and replaceable, even though it would be less expensive for them to hire skilled employees like short-order cooks. They did this very deliberately in order to make the company more resistant to labor organization efforts. When people say that McDonald’s jobs are low-status and replaceable, they’re reflecting the correct perception that these jobs were engineered to be low-status and replaceable. No amount of admonishing people is going to make humans admire a profession (the profession, not the people) that was designed this way.