American's enjoy a variety of foods, including Asian. For example there are three long-time Chinese restaurants in Annandale. However, to be successful, they have welcomed customers of other ancestries -- not just Chinese. And they have English titles on their stores.
Conversely, quite a few Koreans have tried to start businesses for Koreans only -- as evidenced by their Korean-language store names. That's not how it works. Why find out the hard way?