One of the problems is that there's traps to hold folks down. For example, a single mom is better off with a $29K a year job than a $69K a year one, And they know it. The system as designed by the left rewards failure, and punishes trying to climb out. It makes dependents for life. Either that's gross incompetence, or it's intentional malice -- but there's a lesson there. When people learn it, they can't be a good liberal Democrat any more they must choose party (and towing the line) or ethics (helping the poor). Thus there are no informed liberal Democrats on this issue, only fools or liars.