As I already said above, I also answered "socialism". My point was that "the stupid political alliances of America needn't be our concern". My own politics of interest are such that I consider libertarianism is allied to progressivism in the issues that I'm most concerned about -- Sophronius however seems so focused on the American political alliances, that, because by historical accident rightwingers in America are currently allied to libertarians, he sees this as evidence of rightwing bias.