"But what are the Democrats thinking"

George Will thinks that some folks are on the wrong side of the Social Security debate:

Republicans of the "starve the beast" inclination -- those who aim to slow government's activism by reducing government's revenue -- might relish the thought of Social Security's rendezvous with 2011. At that tipping point, the Social Security surplus begins to shrink.

Today the government is partially funded by that surplus of Social Security tax revenue over outlays.... But between 2011 and 2016, Social Security outlays will exceed revenue by $32 billion, and the sums will rapidly increase during the cascading retirements of baby boomers. These sums must result in increased borrowing, or cuts of other government activities, or both.

"Starve the beast" Republicans can live with this. But what are Democrats thinking?

(Hat tip: Andrew Sullivan.)