I think some of them greived before they left, they are just too emotionally devoid to have real feelings like real human beings. They lash out now towards us, because it is the only way they can live with themselves, to rationalize and justify what they have done.
I agree with this wholeheartedly.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.
