I'm just waiting for freefair to quote Supersonic and Cassius, and we'll have about a third of the UK presence on this forum voting against a minimum wage, putting them amongst the sizeable 4% support it receives in actuality.
I'm not against minimum wages or reasonable increases in them, but $15 is about £9.32.
Speaking as an Economics majoring student (thus I'm in a position where this is required knowledge), and someone who is on the minimum wage and knows they don't deserve more, that's a risk in terms of both inflation, tax revenue, supply and demand equilibrium, and unemployment.
Economically it that doesn't make sense- you've got to have some inequality in order to justify the existence of more difficult, specialist, demanding or skilled jobs. Raising it to $9 an hour would be a lot less damaging,
I'm not Ideologically inflexible.