Think about paying more and not shopping at Walmart, if you want to stand on principle. Walmart is 'evil.' They don't pay their employees a living wage, so the tax payers have to pick up the difference.[0]

And, although he is long gone, Sam Walton was notorious for opposing the minimum wage. It's unclear to what extent that attitude persists.

[0] Walmart Workers Cost Taxpayers $6.2 Billion In Public Assistance https://www.forbes.com/sites/clareoconnor/2014/04/15/report-...

[1] Sam Walton and Minimum Wage https://www.snopes.com/fact-check/wage-and-means/