There is no magic bullet that can make everyone get on. All anarchism can offer is that no organ of coercive violence can be used against people.
If an individual or conspiracy desires to hurt someone they can act and try to do that. Nothing can ever prevent that, all you can do is try and stop it happening. No king or emperor can stop a lynching, only punish people after. Historically however these acts have often occured because of support by those weilding power.
Murder is illegal and yet it happens, to prevent it you have to remove incentives and shift culture.
disagreements: It seems we both agree that current parliamentry systems are highly disfunctional and don't encourage or train people in consensus building to everyone's detriment.