I think a bigger issue with retail stores opening on Thanksgiving Day is that the whole Black Friday retail pre-Christmas FEEDING FRENZY has been moved to a day that is traditionally a quiet full. stop. for most folks. You know, I get that some folks don't celebrate Thanksgiving on the day itself so you don't see how it's a big deal but you are an anomaly. Just because it doesn't effect you personally doesn't mean it's a good idea to open the Big Box stores on Thanksgiving. I am an anomaly here in the US since I don't celebrate Christmas but I would not be happy if Wal*Mart, Target, TRU & Old Navy opened up on Christmas morning for last-minute gifters.
Are we Americans so addicted to retail therapy that really need to shop every day of the year?
I don't think anyone has argued that they need to shop on Thanksgiving, it is purely a want. Just like watching football is, going out to a restaurant or to the movies, or to WDW or any number of other amusement parks, etc, etc.
And FTR, my grocery store has always been open Christmas morning until noon, and Thanksgiving too.