Erik, Alex,
While it is true to some degree that the English language has been altered, there are many accents, and dialects, as with any other language.
Here in the USA, we even have one called eubonics.
Words like Aks for ask, and "I know thats right" for I agree. Other phrase, such as "where you stay at?" for where do you reside.
I may not like them, but they are part of the fabric of our former isolated, under educated and oppressed African American culture.
I did very well in English, and I know that in Britain, color is spelled colour, aluminum is aluminium, and arse is ass. It's fine with me, and I even use them at times. Windshield is windscreen, and a trunk is a boot, a station wagon is a break, and a hood is a bonnet.
Do you say shut the light out, or turn out the light?
Ever heard the words thingy, or dohickey?