re: "You can't honestly think that"
Sure I can. I live in the most densely Muslim area in the entire country. Chains of of Muslim-oriented religious stores, grocery stores, restaurants, even thrift stores are prevalent. Mosques too, of course, though I wouldn't call them "chains." But guess what? No right-wing backlash.
Now, it would be STUPID for a nationwide grocery chain to start carrying Muslim foods and products because the stores operate (say it with me) N-A-T-I-O-N-W-I-D-E.
Muslims aren't located nationwide. They've congregated in a few pockets throughout the country. I happen to be in the largest one.