I feel the same. Its pretty frustrating. Just swapping character for the sake of appeasing the folks crying for Diversity.
Pretty much the entire lineup of films they have on the way are focusing on gay characters or everytime a marvel rumor pops up its "THIS CHARACTER IN THIS MOVIE WILL BE GAY!" or taking a character and changing their race just for the sake of doing it. Take a already established character that IS that race, and give them some damn shine. They exist, they just arent being pushed.
Sam Jackson as Nick Fury makes perfect sense. Ultimate Marvel's Nick Fury was black, and was based off Sam Jackson well before the MCU began. Or so i've heard. Cant guarantee that black Nick Fury was based off Sam Jackson but thats what different youtube videos have said.