Further, you eliminate the underclass who now have more disposable income to spend.
and their expenses have gone up because everyone else has raised their prices too so . The "but minimum wage in Australia is $15" argument ignores that everything in AU is bloody expensive. That's ok if you're in the mining industry and get a six figure income for a job that can't be exported, but not so good if you're in a manufacturing company trying to compete with other places. Ford, Holden, & Toyota have announced that they're all going to be shutting down plants in the near future because it's just too expensive to operate there.