What if the wage earns you only enough to live on? Some slaves were provided with sustenance and not much else. What's the difference?
This is all quite insulting to the plights of people who were slaves throughout history, and those who still are slaves today. Please don't equate the first-world gripes of people who are unprecedentedly well-off to actual slavery.
The author mentions that she earned $60 a day after taxes.
But "slave" != "wage slave", as explained in the Wikipedia article linked above.
Exactly my point.
Are you kidding?
Slaves are owned, like property (in fact that is the definition of slavery). That's a huge difference.