9.2.1.2: Democracy is an ideology and a structure for organising power and a matter of mentality. From this three aspects sometimes only one is really in place: the democratic structure. In the absence of a democratic mentality and support for democracy as the central idea of running the organisation, the democratic structure will not guarantee a democratic way of decision making.

So in repairing this your aim should not be the refining of the democratic structure. Try an open discussion about the other two aspects, especially about democracy as a mentality.

Look also at: solution 1A: building or restoring organisational hygiene. Look at solution 8: changing the organisational culture. Read management&leadership 7: power.