They paid into it, or they wouldn't be getting it. No matter how the writer wants to paint the characterization of the individuals (And some of those listed are real stretches on personal responsibility for any war crimes, except for one who was actually a guard at Auschwitz).
The way Social Security works, unless you're convicted and incarcerated, you by and large get your benefits back out of it. Since there's about four of them left alive and they're all at death's door, I can't really work up giving a hoot.