Liberals be like "Well I'll pay more if it means..."
Bullshit. At some point the convenience of not cooking your own dinner is not going to be worth the expense. We call all cook hamburgers with lettuce, cheese, pickles, onions, thousand island, on a sesame seed bun. And it will taste better than mac donald's. And at the point where that is true for most people, the job will not exist at all (earning $8 an hour is better than earning $0 an hour because your job no longer exists)
There are two types of jobs. The ones that we (the consumer) pay for because we can't do it (skilled work). Then there are jobs that we can do, but we don't want to do them ourselves, but eventually will do if it gets too expensive. Most of the restaurant industry exists because we are too lazy to cook. (Small exceptions for genuine gourmet restaurants, which are expensive special occasion fare anyhow.)