I think I have the answer. It’s a marketing ploy. When word gets out that Dick’s checks ID’s to weed out illegal aliens, it may draw more business as “Dick’s is pro-American!”, when actually it is not, since I believe Dick’s is a pro-Rat business.
They’re headquartered in Coraopolis, Pennsylvania, just outside Pittsburgh. Given the locale they’re not going to be hardcore Republican, but the nature of the business draws a more conservative group of personnel. Outside the two major metros east and west, you get pretty conservative pretty quick. There’s a reason central PA is known as Northern Alabama, lol.
That is . . . possible.