Suppose you owned a business, would you serve a white-hooded KKK Grand Wizard who came in for supplies for his next hate rally?
He would be asked to remove his hood upon entering the store.
If he did not remove it, he would be asked to leave. At which point he is trespassing if he stays.
If he did remove his hood then you'd have a funny story to tell all your friends about who the Grand Wizard is. Want to see it on CCTV?
If a Muslim woman enters your business, will you require her to remove her burqa or hijab?