Google image search for 'white couples'

I checked the text on the pages, which Google usually seems to use as its primary source of classification data. Most of them have "interracial" or "biracial" on the pages themselves.

I also searched for "____ couples" with every other racial label I could think of. They were all exactly what you'd expect (stereotypically, anyway) for pages and pages.

This seems like a joke or hacktivism or something. It's so far off that it seems very unlikely that the algorithm is wrong.

Either way, I find it far-fetched that this reflects Google's culture. It seems more likely that it's an easy algorithm to game, and someone decided to game it. The "santorum" search results are a similar example.