Walmart WMT-1.81%decrease; red down pointing triangle aisles are piled high with goods this holiday season, but one item sticks out: cotton T-shirts that were made in America and cost $12.98.

"Kash Patel's t-shirts cost $35," Guy wrote. "How much would it cost to get a real made-in-USA t-shirt in the same red color? Over all All American Clothing Co., it would be $13.95 for the same 60 ...