And the workers who are fired because the employer can't afford to pay all his employees this new higher wage aren't getting any money.
As long as it's kept within reason, no one will be fired. In addition, the slight raise will allow other companies to expand and hire new workers as Mr. Smith buys their products with it. It goes in a circle, they pay more but they also get more in return.
I disagree with such a huge leap in minimum wage, but I do think it should be raised to deal with inflation and make sure everyone has enough money to eat 3 meals a day comfortably rather than barely enough to survive (the natural minimum wage).