In the end, what seems to be the legal definition of "whiteness" and why was it so important for the Court to make that determination?

In the end, what seems to be the legal definition of "whiteness" and why was it so important for the Court to make that determination? Furthermore, you must also discuss what effects the denial of naturalization would have on groups such as the Japanese and Asian Indians at this time. Include concrete examples as a part of your response.