First the headscarf, then a special prayer room, then no other employees can eat pork, then no Christmas decorations, then...etc, etc.
We have a small, independent greengrocer in our town who is from a middle eastern country. While his wife and sister-in-law do wear a headscarf, they are in their own place of business. All of them are sincerely pleasant to customers. They have muslim worry beads for sale, but they also have Spanish-language tapes and newspapers (with lots of Catholic articles), the Jewish newspaper (we have lots of orthodox in our town, and secularized Jewish emigrés from the former Soviet Union), and the store Muzac plays Christmas tunes in season.
That's free enterprise, folks. Markets are the great emancipator and liberator.