We're in a recession now., page-33

"A long time ago one of the world's great capitalists , Henry Ford, realized that if he paid his workers peanuts they could not afford to buy what he sold, so he raised his workers payments above the level of peanuts and , guess what?
His workers bought the product he was selling and kept the whole show afloat.
A classic example of demand side economics, which has always worked." - anonymous 

Anyway, unemployment may rise with a higher minimum wage, but I would say to a lesser extent than the amount of the aggregate peoples' disposable incomes. Afterpay makes money off the masses, if you give them more money to spend, they'll have more consumption to smooth.

Higher consumption leads to improved business revenues too, so many businesses will afford to keep people on at higher wages if all wages in the market are lifted.