The Taft-Hartley Act of 1947 banned sectoral collective bargaining. In sectoral bargaining, all unions in an economic sector and all firms in an economic sector must agree on a single contract. Instead, the United States requires enterprise-level collective bargaining. In enterprise bargaining, a union must organize workers within each physical location (plant, office, store, etc.) of an employer and win a contract with each employer. This hurts unions enormously.
There is an alternative: During World War 2, states used tripartite wage boards to determine wages and working conditions across an economic sector. The laws authorizing these boards remain active in five (5) states: Arizona, California, Colorado, New Jersey, and New York. Under updated legislation, CA and NY's fast-food wage boards have attempted to set wages for all fast-food workers.
Will any state pass similar legislation to authorize a wage board for all or nearly all sectors (ie, not just fast food) and use that board's authority by end of year 2030?