Can someone explain to the uninformed why raising the minimum wage to $15 can hurt everyone?

Labor cost are one of the largest controllable expenses.  For each industry labor has to remain within a certain % for that business to stay profitable. Food has a very low profit rate already. Raising the cost of labor has to be balanced somewhere else.  That leaves raising prices of of the product or bring that labor cost back in line, which translates to fewer hours. Usually small business, business that already are working with a small profit margin, will do both at first. Cut some hours and raise prices. They then need to see how that impacts their business. If  it slows, then they need to cut more hours, possible adjust prices again. Larger business have more play and time to fiddle about about. They have ore cushion. Raising minimum pushes more mom and pops out of the picture.  Take Starbucks a while back. Raising everyone's pay in Washington state. Everyone clapped. A month later they raised all their prices across the US, blamed at an increase in beans. Only at that tie, Beans were at a historic low.

Yeah, getting millions of Americans off food stamps is a terrible idea.

You American drones are some of the saddest most delusional creatures on this planet. It's crazy to watch you fools fight to give yourselves a lower wage! So-called Land of the Free has more people in prison and more people on its streets it's streets than any of the superior Nations over here in Europe. I'm so grateful that I get to watch you guys sink from another part of the world. It's crazy to think that I used to dream of living there when I was a kid!

owners will raise their prices to cover the additional payroll expense and some jobs will be eliminated by self serving kiosks

If they change the minimum wage to $15 then the poverty line will move to $30,000 and many people will no longer qualify for medicaid. 

A one-bedroom apartment rents for $300 to $3,000 depending on where you live. The effect of a $15 minimum wage will be de-urbanization. Move to cheaper places to live, earn the same $15. The political map will change. 

The 'conservative' view is that poor people have too much money and rich people don't have enough.

The notion that any job worth being done should be done with a pay scale that leaves the full time worker in a state of actual poverty is utter perversion.

Because as Minimum Wage goes up so does the Cost of Living and Inflation to pay for it.

The US is a huge country and what is a "living wage" in one area is overkill in another. 

There is no law preventing individual States from making their own regional adjustments to the Federal Minimum wage....Matter of fact there is even a Constitutional Amendment (the 10th) that makes it their Right.

It'd make it easier for such people to pay rent, also depend less on government assistance 

(food stamps and such). Case in point, a friend of mine was once a full time manager at both Walmart and McDonalds. Why should she work 80+ hour weeks, usually on very little sleep?

Fortunately they were about a 5 minute walk away, but she'd stroll back and forth so probably did not even have a car. Those against a higher minimum wage are out of touch with reality.