The minimum wage is in part a failure of the market just like the "need" for unions.
Many sectors of the economy base their wages using the minimum wage as the baseline.
As long as real buying power kept going up, true inflation was low and benefits were good there was no real pent up demand for a minimum wage hike.
In the Obama economy we see wage stagnation on the bottom, real inflation is actually pretty high and many lost their benefits due to Obamacare. Real buying power on the bottom is actually slipping.
Folks on the bottom have no real power to demand higher wages other than unions or electing politicritters to legislate raises for them.
The FSArmy isn't big enough to influence this movement. Politicritters are trolling for votes by exploiting an actual real loss in buying power and benefits by not only the FSArmy but also a substantial segment of the working "poor".
Just my 2 pennies (real world spending power of 1 cent)