I'd like to point out that every political party, from far left to far right, anarchist to fascist, and so on and so forth, has a terrorist faction. People seem to blame right wingers for terrorism more so than left wingers. Islamic terrorism is in the spotlight, with Neo-Nazi actions not too far behind. However, left wingers can also be radical terrorists.
Stop worrying about the views espoused by these terrorists, and look at their murderous or destructive actions alone, and let them speak for themselves.
As a Nationalist, I am still opposed to most of what is labeled Neo-Nazi terrorism.