I've seen nothing to suggest this fellow is the least bit insane in the more professional sense of the term. He has a worldview that is a bit unique, but fairly logical in its structure.
His worldview is rooted in Darwinism (thus lacking value for human life, and treating 'competition' in the form of murdering political opponents as an acceptable option). However, he personally valued what he called 'cultural Christianity' (explicitly including western European atheism/agnosticism in that tradition - as astute observation in my opinion). He didn't attend church, pray or otherwise have a relationship with God, but he did value the results of Christian faith that he still sees around him in European culture. Thus his Darwinian predilections motivated him to try to defend that waning tradition with brute force.
How interesting that the last 10 seconds of the video was removed —in spite of no obscenity at all.
http://www.youtube.com/watch?v=m3rEZjuswho
Why did the little boy —in spite of what you can be sure was a pretty secular upbringing— declare that they were Christians..? I mean...it struck his mom as so weird that she was clearly embarrassed.
Why did he do that..?
How is might his own recent Norwegian upbringing differ from that of this mother, decades ago...?
Wow. That was some kind of logic leaping incomprehensible rant. Thanks.