By right-wing racist, are you talking about Fredrik whose children are mixed-race (note the clips where he got married in Laos) or Carl who's married to a jewish woman?
It's a mistranslation, and you are ignoring the context.
He points out that every time he has been beaten up or robbed the assailants have been immigrants. And by immigrants, he clarifies, he is not talking about 7th generation Finns but about "turkblattejävlar". The phrase he uses can't be directly translated. It's a generalized racial slur of moderate intensity with a clear subtext of social class.
In the context, and when contrasted with "7th generation Finns", he is using the phrase to refer to a certain demographic: young males of low socioeconomic status, most likely originating from the Middle-east or North Africa. In polite conversation this is the subset of the population that you would euphemistically refer to as "ungdomsgäng" or "youths".
But, as you can see, he is not in a polite conversation: he's in a pub, he's drunk, and he has just called brokep "a fucking vegetarian leftist bitch ass bastard" who's driven by "ideological pussy-inflicted instincts". In that setting and with that tone the phrase was at most a less than appropriate way of referring to his attackers — hardly an exhibit of "right wing racism".
One of them is an Alcoholic right-wing racist, another a drug addict.
Peter Sunde seems to be the only person who who seems vaguely normal.
I wish teenagers, children and other "pirates" realize that there is no glory in associating themselves with these sociopaths.