On the contrary, I think as the world gets more connected English speakers, at least, are getting used to more different accents. And for some reason regional accents are not disappearing. It's an enjoyable sonic world.

It's such fun to converse in our rich English language with someone whose accent is different. It evokes curiosity, and curiosity is the key to a rich life--in any language.

Hollywood movies are watched all over the world and we still have accents. Even in America, there are lots of accents. They don't all speak like Hollywood Californians.

same with languages we should all speak welsh with an irish accent

Americans don't even all have the same accent even NYC alone has various accents 😅

Strewth mate, don't take the piss.