Actually, Fury's always been black in the Ultimate Marvel Universe; the character and the design was actually based on Jackson so casting him for the MCU probably was an obvious direction choice.
I also had my boss, when I worked in fast food, list this as one of the issues he had with the movie, when it came out (to quote him, "he's a white character; no offense but that's what he is," which was particularly galling, given the aforementioned fact).
Just noticed that the thread is from last year…
But, considering how much we're still not heeding this fact a year later, perhaps just as well to keep the post up.