With respect, the mention of the DCs gives the article a historical context to read about the history of the so-called 'progressive' movement. I seriously doubt any readers of the Am Spec will be moved to purchase any DC stuff by this article. The comparision between them and Henry Wallace educates the reader in the provenance of the wacky left and makes for a good read, IMO.
I do not understand this idea that 'ignoring' your political opponents will make them go away--any more than ignoring a toothache will make it go away. Though they prattle and whine like children, they are not; freepers need this historical context to deal with these twits intellectually.
I enjoyed the historical context but with respect, the Dixie Chicks are hardly our political opponents. Rather they seek profit by elevating themselves to victimhood, no more or no less than many. Mentioning them as one of the many examples that derive their "beliefs" from the political philosophy of Henry Wallace is well and good (although I'd be surprised if the DC ever heard of him). Giving the Dixie Chics the starring role in an opinion piece which addresses so much more than just them is what disappointed me.