Ok, this is the thing. Don't you think minimum wage means that that wage should be able to get that person the basics of what you need to live?
The basics - paying rent for a flat, paying electric bills, owning a tv, getting food, clothes, pay for health care, etc.
If you're working 40 hours a week, and you can't even buy 40 cups of coffee with that wage... I mean seriously, that's a ****ing disgrace. It's not a system you should be defending. You should be admitting that it's wrong and something needs to change.
I'm not saying that a person should live in a mansion. I'm just saying they should be able to live comfortably if they work the hours. I'm not suggesting that people stay in minimum wage jobs their entire life. But plenty of people do because they can't get better for a variety of reasons.