SD are better than Pirates?

This is an unclassified cable in the wikileaks archive that describes Sweden's Pirate party from June 10, 2009.
'A side effect of the Pirates’ success is that it most likely reduced the chances for the far-right nationalist Sweden Democrats to gain representation in the EP. The Pirates have some of the same voter base -- young men with mistrust for politicians. Although the Sweden Democrats tripled their results to 3.3%, up from 1.1% in 2004, they remain below the threshold for representation in either the EP or Swedish Parliament.'
Why is it in American interest to groom a xenophobic backwards little party who focusses on immigration compared to the intelligent rebellious party who focusses on changes to copyright law and file sharing? Do I really need to ask after what has gone on in US with the Tea Party? ( although in my opinion I have an issue with single issue parties)
The voice of the cables is of course extremely opinionated and not neutral when it comes to the election results around the world, when it is seen as affecting the American governments interests. From living in Virginia and experiencing first hand the detrimental effects of media concentration, gerrymandering, single issue, opaque ballot counting, and dirty campaigning, I know how much the establishment we have today values democracy. The results speak for themselves.