He has promoted this belief in a self-published book titled Defeating Eurabia,[7][8] and stated that "Islam, and all those who practice it, must be totally and physically removed from the entire Western world".
[9] Anders Behring Breivik, a neo-Nazi, exploited[10] Fjordman's belief in the Eurabia conspiracy theory, a supposed secret Muslim plan to take over Europe, and quoted him extensively – 111 times – in his manifesto.
"[15] He has however been described as comparatively considerably more dystopian and pessimistic than others in the movement for his predictions of coming civil wars across Europe,[16] earning him the nickname "the dark prophet of Norway".
[23] His parents are well-known personalities in Ålesund; his father an arranger of music concerts with a past in the former Marxist–Leninist Socialist Youth League (m–l), and his mother a historian and writer.
"[23] After returning home, Jensen began writing commentaries to Norway's leading newspapers, but claims his controversial opinions were not published by the mainstream media.
[33] In April 2003, Jensen came close to being struck by the Mike's Place suicide bombing, while two of his colleagues had been killed in a similar attack the year before.
[24][36] In August 2011, Norwegian professor Arnulf Hagen claimed that there was much to suggest that Jensen had a Wikipedia account (Misheu) which made 2000 edits.
[39] Since then, he has "guested" and commented in other blogs, mainly on Gates of Vienna, but also on Jihad Watch, Brussels Journal, Faith Freedom International, Free Republic, Daily Pundit, Global Politician and FrontPage Magazine.
He is an outspoken proponent of Bat Ye'or's conspiracy theory of "Eurabia", according to which Europe and the Arab states would join forces to make life impossible for Israel and Islamize the old continent.
"[47] He also rejects accusations of racism, stating that "non-whites attacking whites" constitutes "the vast majority of racist violence in Western nations".
[50]Shortly after the bombing of Oslo in the 2011 Norway attacks (when it still was believed the terrorist was an Islamist), Fjordman asked his regular readers at the Gates of Vienna blog to "remember" that Norwegian Prime Minister Jens Stoltenberg was as much a "pathetic sucker for Islam as it is humanly possible to be" and his Labour/Socialist Left/Centre Party government "the most dhimmi appeasing of all Western governments (…) suicidal and cowardly".
[51] When the shooting at Utøya became known a few hours later, Fjordman described the Workers' Youth League (AUF) under attack as a "gang of anti-Israeli, pro-Palestine youth-socialists".
[51] Anders Behring Breivik, the far-right terrorist who committed the 2011 Norway attacks, frequently praised writings of Fjordman,[52] citing him extensively in his manifesto.
[54] In particular, there is a 2008 article in the anti-Islamic blog The Brussels Journal[55] where Fjordman focuses on a quote from Norwegian social anthropologist Thomas Hylland Eriksen.
[64] On 10 October 2011, Jensen announced on a blog that due to having been involuntarily mixed in with the Breivik-case, he had become unemployed and was in the process of finding a new place to live.
"[65][66] Jensen wrote in an opinion piece published in Verdens Gang on 24 October, under the headline "Fjordman lives on," that he would continue writing with "undiminished force."
In an opinion piece published in Aftenposten the same day, he complained about what he considered to be harassment by the police in the aftermath of the July terror attacks.
[67] In 2013, Jensen was granted 75,000 Norwegian kroner from the Fritt Ord foundation for a book he was writing on the Breivik case, titled Vitne til vanvidd [Witness to Madness].
In July 2013 an editor at Dagsavisen called Fjordman "one of Europe's most influential Islamophobe ideologists" and grouped him with Vidkun Quisling, Anders Behring Breivik and Varg Vikernes as a "great internationally known extremist of hate".
[72] In a 2016 review of the book in Aftenposten, Per Anders Madsen writes that Fjordman comes across as less extreme than previously, which he attributes both to having become more accustomed to anti-Muslim attitudes, as well as the new situation following the European migrant crisis.