I didn't realize we had so many economic scholars in this group. I'd venture to say: it's not as simple as it seems (as if anything is). And there's some fairly well documented (i.e., backed by evidence) arguments against many of those made here. This article has some, but there's tons more in this domain:
http://www.salon.com/2015/08/04/the...bout_the_fight_for_a_15_minimum_wage_partner/
http://www.salon.com/2015/08/04/the...bout_the_fight_for_a_15_minimum_wage_partner/