@cicerone imposter,
I think you are confused about unions generally and Goverrnment employee unions specificly. Forty years ago unions of government employees, both State & Local and Federal were a rare thing - except for Police and Firemen. Indeed until the early 1960 s Federal Civil service procedures explicitly prohibited labor union representation of Federal Employees, regarding such matters as an intrinsic, non delegable function of government. Even today Federal government labor unions are precluded from bargaining over wages and work rules. Just what these unions do for the dues they collect is something I don't understand, however most of it goes for political activity.
Similarly Sovereign states have unlimited powers to regulate and limit the representation of state employees by labor unions, and many use them to prohibit the prectice.
Wisconsin did not out outlaw state employee unions. Instead it made membership and payment of dues a matter of individual choice by the employees, ending the previous practice of forced membership and dues paying as a condition of employment. In addition it limited the issues over which the state and local governments are required to bargain with the unions. These limits are not nearly as severe as those currently in Force in the Federal government.
The stuff you posted has no effect whatever over unions operating in the private sector.