The Democratic party is being driven by those on the left flank of the party. Yes, the moderates are nominally in charge, but only so long as they drive the agenda of their more extreme members. It's similar to how John Boehner was an arguably more moderate Republican, nominally in charge of house. However, he got led around by the nose by the more extreme Freedom caucus who didn't have a lot of official control, but wielded a tremendous amount of soft power.
Right now, sure. But the political machinery is never in bed with the more radical people. Things are extreme now because it’s being driven that way by various parties.
As that calms down, compromises will be made and order will return. Recovery from economic catastrophe will be the priority.
