I'm English, as is the name of our (mostly) shared language.
The bloody Yanks bastardised it. We're just protecting the correct way of doing things. Things carry on like this and the colonies will end up conversing in txtspk. lol.
I heard from a professor once that American English was actually how people spoke before the US was colonized, and that the British "developed" the current "accent" in order to differentiate themselves from the colonists.
I have no sources for this and do not vouch for its validity