But these things are already happening without raising the minimum wage. If a company can replace a person with a machine, they will do it because it is best for their bottom line. If they can ship jobs overseas and save money they will do it. And they have been doing both of these things for the last 15 years (if not more).
The jobs that are still here are here because they have to be, especially the lower wage jobs. You can't take the janitor or cashier and ship that job to China, and those are the people making minimum wage.