I'm not English, so I don't even have any such opinion on the British Empire - I'm Irish, and as such, come from a country that has been quite damaged by the "British Empire" - Cromwell, the Potato Famine and the Northern Ireland mess to name a few.
My point isn't regarding accents (personally my accent is English with a few drabs of Irish and Scottish). It's regarding grammar and language.
It's COLOUR not color. METRE not meter. And not so many Zs!
I just have a slight penchant for taking the piss out of Americans, so don't worry, it's not serious. But they should at least learn how to spell colour properly.