Why is it Wal-Mart's responsibility to provide healthcare to its workers? For that matter, why is it the public's responsibility to provide healthcare? Each individual is responsible for taking care of themselves and earning their own living. Nobody owes them that.
Because that is the way the system has been set up through the consent of many generations since the 19th Century, in exchange for the right to sue others for injuries and have health care remain private, the government has not socialised medicine because there has been no need to. Now Walmart, which would not be here but for the benefits of existing because of the systems in place in this country, wants to shirk its responsibility, at the expense of others in society, namely the taxpayers