I get the point that you are making, but is "living wage" itself not a superficial throwaway phrase?
These people were still living before the minimum wage increase. They still qualify for government benefits since they are still below the poverty line.
What's changed and why was the change necessary? They momentarily have a little more money for non-essential things, but most of that will be eroded by inflation. They are benefiting short term, at the expense of everyone.
Is that something that government should promote? It's going to really hurt those who were making just above minimum wage. They are now effectively poorer and are close to slipping back down into minimum wage status. Their wage might increase some but it won't be equal to the minimum wage hike that those below them just recieved because there is no real incentive for buisness owners to give them an equal increase.
First, it's not going to hurt anyone making just above minimum wage. They are not poorer. Their wages have not changed. It sounds like a status argument, not an economic one. It's like saying that if your subordinate gets a raise, you're now poorer because the difference between your incomes isn't a big as before.
That fits within the theme that people's gripe is about relative wealth, the "I make more than you so I'm better than you" school of economic thought that tends to pervade discussions about the poor. But it's not an economically sound reason against raising the minimum wage.
Additionally, most of their increased wages will not be eroded by inflation. Raising the minimum wage for fast food workers doesn't affect the cost of anything except buying fast food. If the cost of meat or bread or utilities were going up via inflation, it would happen regardless of what you pay fast food workers. The fed isn't raising interest rates because of this.
As for the actual wage recipients -- This probably allows them to afford essential things that they might have been foregoing because of the cost. The general minimum in California is $16.00. An extra $4.00 per hour is $8k a year. That's a significant difference for people who are paying rent or need to manage a car note.
Why was the change necessary? Probably because the state legislature recognized that a sizeable portion of their workforce was working in this industry and was incapable of meeting their economic needs. This failure resulted in those people hitting the welfare rolls at a rate high enough to make the state look twice at the industry. Considering all of the other health and social risk factors attached to fast food, the legislature decided to shift a greater percentage of the economic burden of the industry on to the corporations that profit from said industry.
The idea of a livable wage isn't a throwaway phrase and I don't have a problem with throwaway phrases. I have a problem with people who don't think beyond the phrase and can't address the actual reasoning why said phrases exist. A livable wage, while undefined, is generally meant to be a wage that an individual can successfully live on. Not get rich or anything like that. Just a wage where if they're putting in a legit 40 hour work week, they shouldn't have to struggle to make ends meet at the basic level and they shouldn't be shifting an unreasonable amount of their needs onto the state.
The comment that people working in fast food don't need a livable wage shows a lack of thought because, as I mentioned, nothing about fast food means that the people working in it shouldn't able to meet their basic economic needs. And attaching it to "work experience" is even less well thought out because it's not work experience for any job other than more fast food work.