This is a problem that goes beyond the Academy. England might perhaps be surprised to discover that it doesn’t have the second- or even the third-largest number of speakers of the language that bears its name.
India, the Philippines, Nigeria and Pakistan are all home to comparably larger numbers of English speakers. Yes, many of those people speak additional languages and English is not their “first” language. But, even for them, English is often the language of aspiration, the language of cross-cultural communication, the language of the city.
Restricting their national cultural production entirely to their “first” language would be absurdly limiting. English is not an American or British language. It is the language of millions of us elsewhere who use it unselfconsciously to produce work that is entirely “international” as far as the U.S. is concerned.