Got wine at the airport? It's harder to grab a cab

In a story appearing in our local liberal rag we find this: "When flight attendant Eva Buzek returned to Minneapolis from a trip to France, five taxi drivers refused to take her home from the airport. The reason? She had two bottles of wine in her suitcase -- and the drivers were Muslims, who don't drink and refuse to have alcohol in their taxis."

Now what I need to know is this. Why is it ok for a person (the cab driver) under the banner of their Islamic faith to deny 'customers' rides to their destinations because it violates their religious beliefs, yet ... yet ... it is not ok for Christian pharmacists to deny 'customers' the 'right' to purchase the morning-after pill even though it goes against their religious beliefs?