When the ACA was passed, Walmart hired enough people to make sure that everyone worked less than the required average of 30hrs a week per month so that they would not have to pay for health benefits or be fined. They relieved themselves of their duty to provide benefits to their full time employees by going out of their way to eliminate full time employees.

What did you expect them to do? When Wal-Mart has a choice, they almost always choose the least expensive option. If the drafters of the ACA wanted Wal-Mart to pay for health insurance, they should not have left Wal-Mart an easy way out.

Why is it that we believe employers have a duty to employees to provide benefits like health coverage?

Because Americans want all the benefits of socialism but with plausible deniability about not being "commies"

>If the supply of labor decreases, the prevailing wage will increase. //

So, all the low paid need to do is reduce the number of people available. Genocide has never been so easily argued for.