The only thing that takes anyone's job is demand shortfalls. Productivity increases certainly don't do it. It's like saying getting a raise makes you poorer.
Actually, in my country, Portugal, if your salary is the Minimum wage, you are exempt from paying taxes, but if you get a raise as little as 15€ or so, you move one category up and start to pay taxes, and you will receive less money than what you used to get before the raise.