>it is about Walmart structuring their employment in such a way as to funnel labor costs onto taxpayers.

I am having a really hard time thinking about the situation and agreeing with your implied premise that Walmart should employee people if and only if they pay them enough to remove them from all government benefits (or even healthcare). Does Walmart purposefully structure employment so they don't have to provide healthcare? Undeniably! It saves them tons of money! I have a hard time thinking of this as an immoral act that you imply it is.

Why is it wrong for them to do it?