I have a huge problem with the Americans and Brits for this, they marginalise the fuck out if our dialect, make fun of it for being unitelligible

I mean I know you're talking about the wider world and not just this thread, but you started the conversation by being disingenuous about Americans and their dialects. It's kind of hard for people to take "I have a legitimate dialect" seriously when you just got done trashing half a continent's worth of dialects

Maybe if we all broach the topic with a little more understanding, you and everyone will feel better about it. For example Appalachian English and Northern Ireland English are both dialects with their own rules of pronunciation and grammar. They're both legitimate. But it's not surprising they'd have trouble understanding each other because they have so little interaction. But with patience and mutual respect it can happen