No surprise here. The law of supply and demand says that lower wage workers will be laid off when the wage rate goes above their productivity.
Seattle’s Minimum Wage Hike Didn’t Help Low-wage Workers | Corey Iacono
In late 2014, the city of Seattle did something some economists would describe as daring when it passed a law requiring the minimum wage to be raised to $15 an hour, in stages, by 2017.