After reading the article that I have linked above and other articles on this particular interaction; I have come to the conclusion that Mr. Bonilla-Silva and others have completely missed the point that Chief Justice Roberts was trying to make.
My interpretation of what the Chief Justice stated is similar to what Ed Whelan stated in his National Review editorial: "In a grandstanding letter to Chief Justice Roberts, Eduardo Bonilla-Silva, president of the American Sociological Association, takes umbrage at the Chief’s reference to “sociological gobbledygook” at oral argument in the redistricting case of Gill v. Whitford. But Silva does so only by grossly misrepresenting Roberts’s point. Silva gets on his high horse by pretending that the Chief was dismissing all of sociology as “gobbledygook.” But the Chief was instead characterizing the sorts of standards that were being advanced as measures of an unconstitutional gerrymander."
What it boils down to in my opinion - the left uses and twist it to where it suits their agenda. A perfect example for part of this would be the two opposite views by NC Democrats about one or more of their districts, it is ok when it gives you an advantage, but not when that advantage is taken away by your opponents use of it against you.
Read more at:
http://www.nationalreview.com/bench-memos/452540/roberts-sociological-gobbledygook