Why Aren't Democrats Protesting the Biden DOJ Over Lack of 1/6 Insurrection Charges?

For the last 9 months, Democrats in politics and media have insisted that 1/6 was the worst attack on American democracy since the Civil War, that it entailed crimes of sedition, treason, insurrection, and attempted murder and kidnapping of elected officials. Yet thus far, not a single American has been charged with any of those crimes. If Democrats believe this narrative, why are they not enraged at the Biden DOJ?