The only reason labor unions are legal is that certain unions have outsized political clout, in a perfect world labor unions would be illegal under antitrust laws as forcing companies to pay workers more than what a free market dictates inevitably increases prices.
Does it inevitably increase prices, or could its millionaire/billionaire execs just maybe own a few less private jets and McMansions?
Anyway, even if prices were increased, what's wrong with a market in which all participants earned a living wage?
Or are the absolute minimum prices that markets can bear something we should be striving for even if it means those at the bottom can barely survive?