Consider the benefits you haven't talked about like shoring up Social Security so the right can't even pretend it needs fixing. That means old folks who worked all their lives can eat. Or revenue to the local and federal government as people spend more, maybe we'll get some of those roads, sewers, and antiquated water systems fixed. Raising the minimum wage to a living but "thrifty" level like it was supposed to be will have a ripple effect all through the economy and is just plain good sense.
Even the rich, who will get richer a little slower, will find their dividend checks increasing. They'll sob about their persecution all the way to the Caymans.
Minimum wage earners come in all colors and ages. Some are discarded corporate folks with fancy degrees who just got too old to be "cost effective." Some are kids right out of school who are trying to build a work history. And some are people living in terror about how their rent will be paid and what they're going to feed their kids.
They all need a significant raise and they need it now.