This article is a perfect example of how those who make their living as intellectuals have a tendency to theorize themselves eventually all the way up their own asses.
Goldberg was just pointing how certain liberals, who take everything seriously and always look for problems where there aren't any, might make an issue out of the "slave" androids. It was a satirical take. And the record has been liberals try to make an issue out of everything.
You should read Goldberg's columns at NatReviewOnline to understand his sense of humor better. It's quite large.