I think the intent is closer to "we would remove taxes if it were possible but because we can't, we want you to pay so that we can compete on price." As a consumer, if I see Walmart selling something for $3 cheaper but with $4 taxes making it higher, I'll go with Amazon as its cheaper overall. It sucks for Walmart because they were willing to mark their item down further than Amazon and still lost the sale. Then there are some items you know that everyone has to charge one price for. It will always be higher at Walmart