'consensus is based on a respectful dialogue between equals'. However, even with the best intentions in the world, consensus groups often replicate the inequalities of wider society. None of us enter a meeting with a clean slate - we bring all kinds of different life experiences and expectations into the room, that impact on how likely we are to come away with our needs met.
These differences don't mean that the people who have more power are 'bad'. However, to effectively use consensus we need to tackle these power dynamics.
Addressing deeply ingrained inequalities is an ongoing process which can be painful and frustrating, but the rewards are better decisions and more genuine liberation and connection to each other. However, a group should try hard to ensure that the people who are already most dis-empowered by society don't end up doing most of the work in tackling a group's power dynamics.