Great point! I always remind my lib friends of FDR's take on privitizing SS...makes 'em squirm!
Here's a bit more:
http://exposingtheleft.blogspot.com/2005/04/political-expediency-personified.html
Keep making them squirm. Maybe eventually they'll squirm right off the left-wing hook (once it gets too much for them to bear being shown the hypocrisy over & over & over).