How is it untrue? What people, who did not reach an agreement with Walmart to work together, are working at Walmart? Why would Walmart even want to have worker

How is it untrue? What people, who did not reach an agreement with Walmart to work together, are working at Walmart? Why would Walmart even want to have workers who walked away from the table during negation, of whom they have no employment agreement and are technically not even employees, working for them? That doesn't make any sense to me whatsoever. Even ignoring the sketchy legal ground, it seems like a huge liability to have what are effectively random people walking in off the street doing work at your store. I am still dubious that Walmart, or any other business for that matter, would allow this.