Conservatives and libertarians often refer to liberals, especially those of the modern “progressive” variety, as being motivated by guilt. This view has a long pedigree: Robert Frost once defined a liberal as someone so high-minded that he won’t take his own side in a quarrel.
At least as far as our current “progressives” go, I think this explanation of motivation is highly questionable. An essay by C S Lewis, written a little over 60 years ago, sheds some light on this matter.
During the late 1930s and up through the time when Lewis wrote (March 1940), there was evidently a movement among Christian youth to “repent” England’s sins (which evidently were thought to include the treaty of Versailles) and to “forgive” England’s enemies.
Young Christians especially..are turning to it in large numbers. They are ready to believe that England bears part of the guilt for the present war, and ready to admit their own share in the guilt of England…Most of these young men were children…when England made many of those decisions to which the present disorders could plausibly be traced. Are they, perhaps, repenting what they have in no sense done?