The binding legal principle is that section 23(1) of the Constitution does not guarantee a right to individual or parallel consultation in retrenchment processes beyond what is provided in section 189 of the LRA. The hierarchical consultation framework in section 189(1), which prioritizes consultation with parties identified in collective agreements, is constitutionally valid. Where a collective agreement exists and identifies consulting parties, the employer need only consult those parties and is not required to consult other unions or individual employees. This legislative scheme is rational, fair, and based on international standards. The principle of majoritarianism in collective bargaining is compatible with this framework. Procedural compliance with section 189 does not preclude review on grounds of substantive unfairness, legality, or arbitrariness.