And if there weren't laws and worker inspections and whatnot in place already, people would go on strike - and that usually has a major effect, like nationally crippled transportation (of any sort) or rapid accumulation of trash.
Which TBF makes me a bit depressed about the Americans. Have all the Walmart employees unionize and go on strike - there's nothing the management can do, not even enforce their 'you cannot unionize' contract thing, if everyone goes against them.
Some people are afraid pushovers TBF. And the employers slowly turned them into that, by making them poor.