Apple and Google’s wage-fixing cartel involved dozens more companies, over one million employees

My libertarian friends keep telling me that in a free market this type of thing simply can not happen. That companies will bid-up the wages of in-demand workers and could never take action to suppress those wages without state involvement. After all, in a free market everything is voluntary.

Those million tech workers must have voluntary agreed to the wage suppression agreement somehow. In some way I just can not see.