There's only one problem with those arguments -- they are lies. As the chart above shows (from the Economic Policy Institute), about 88% of the people working for minimum wage in this country are 20 years old or older -- not teens. And 56% are women, while at least 28% are trying to support children on that ridiculous salary. In addition, numerous polls have shown that raising the minimum wage does not cause lay-offs or hurt businesses. In states with a minimum wage higher than the federal level, businesses are doing quite well (better than in many states with the federal minimum wage).
The truth is that the minimum wage is not a livable wage, and even though it was raised to $7.25 an hour a few years ago, it has about 1/3 less buying power than it had back in the late 1960s. The minimum wage needs to be raised, and it needs to be raised significantly (to at least $10.00 an hour). And the American people want it raised, saying they could not live on it themselves.
This is verified by a recent YouGov Poll (which surveyed 1,000 adults on August 30th and 31st). The poll showed at least 63% of Americans think the minimum wage should be raised, and 74% of the public says they couldn't live off the minimum wage -- and that cuts across all age, racial, gender, educational, regional, and political preferences (including 63% of Republicans). Here are the poll results: