How is minimum wage or labor unions different from competing suppliers engaged in price fixing? (The suppliers being workers, and the product, human labor) Thi

How is minimum wage or labor unions different from competing suppliers engaged in price fixing? (The suppliers being workers, and the product, human labor) This is not rhetorical, I want perspectives I may have missed. My initial thought is that it Is similar to price fixing and has negative consequences, but there are perceptions of positive consequences that make it socially unacceptable to not go along with it?