Given the choice between the man who butchered his son, and the man who stopped the man who butchered his son, Berg chooses the butcher.
Pacifists in general are not in any way admirable people, they are very often fascists without the courage to declare themselves, their moral outrage is almost always reserved for the people who would stand up to evil. Pacifists as a general rule always side with evil.
If you ever find yourself in a serious struggle with a dangerous foe, not only will a pacifist not help you, you will discover that his sympathies are with the biggest and the baddest, and not with you. You shame him by your willingness to act, and to risk yourself in a fight. He will never forgive you for that.
But Berg is in a class by himself. He is a moral imbecile.
Yes, at the root. A pacifist is nothing more then a Coward who feels guilty for that. " turn the other Cheek" is a slap a pride, one of the deadly Sins, not let someone kill you or your's