The highest proportion of English speakers now live in and originate from India. However, being a 'native' speaker seems, anachronistically, to imply you should have been born in a country with English as the native language. This implies you should fit a particular stereotype (of which being white is one characterstic) to meet the demands of that marketplace. These prejudices are built into most capitalist marketplaces and based on false premises, since 'native' English is a marketplace invention; there are many forms of English and 'native, meaning standard, is just one small minority element in that range or field.

At the same time, teaching English requires pedagogical expertise and content knowledge; subject matter expertise. These are typically acquired via standard industry qualifications. RSA CELTA and DELTA and also Masters Degrees in TEFL and Applied Linguistics.

The assumption that you are fit to teach English simply because you speak it is equivalent to suggesting you can be a surgeon because you have peeled a potato.