One paradox of the Obama Presidency is how it has retained the support of young people and minorities despite the damage its policies have done to their economic prospects. In his latest attempt to increase the minority youth jobless rate, President Obama is proposing to raise the minimum wage.

In his State of the Union address, Mr. Obama proposed an increase to $9 an hour by 2015 from $7.25, and then indexing the minimum to inflation. "Employers may get a more stable workforce due to reduced turnover and increased productivity,"...