There is no reason to continue the conservatorship.
What makes you trusting of the GSE's to do business lawfully without control/oversight from the U.S. Government? The confidence in these organizations eluded to by shareholders couldn't be further from a representation of the true sentiment shared by that of the general public. Because they're profitable now we merely overlook the actions from the past decade, cross our fingers & hope they do right by the American people this time, and ship them out into the market alone?
The U.S. Government can print money, they don't GSE cash. They're using their authority to prevent the secondary mortgage market from being swayed by conflict of interest which caused the corrupt state it was in leading up and into 2008, the same place most concede financial institutions remain to this day.