I'm consistently surprised by misunderstandings of supply and demand.
There is a labor market. It's relatively free, all things considered. Sometimes companies conspire to keep prices down (see: high tech antitrust lawsuit/settlement) but usually the thing that keeps wages low isn't business owner collusion it's the availability of workers accepting work with a low wage.
Sure, all things being equal business owners would like to pay less for labor. They'd also like to pay less rent, less for insurance, lower taxes, etc. And sometimes they want to pay less than anyone is willing to accept, and sometimes instead of raising wages they rant about it on Twitter or in opinion pieces or whatever.
But that doesn't get them employees!