Okay I'll admit, this made me laugh.
My opinion about this still remains the same though. Peter Parker is too well-known and familiar to have a drastic change like making him black actually work. Nick Fury, Kingpin, and Heimdall in Thor are one thing. Unless you're a Marvel fan you likely don't even know who they are. It would also be a non-issue to have the Avengers make the Wasp black, or something. Comic book heroes really hit big in the 30's, 40's, 50's and 60's, and the idea that a black person would be portrayed as anything more than the Help was alien, leading to a serious dearth of black super-heroes. We need more, yes, and some heroes who are due for a personality makeover could successfully be made black in a movie with no problems. Just not Spider-Man. People who have never cracked open a comic book in their life know who Spider-Man is, and that was before there were movies about him. To have Peter Parker suddenly be black would have movie fans and Spider-man fanboys across the world crying foul, and NOT because they're filthy racists, but because Spider-Man isn't black. It would be like having an A-Team movie and making BA Barracus white or doing a Blade reboot and have someone like Sam Worthington play him. You just don't do it.
I would be just as opposed to any drastic change to Peter Parker, such as having him live with his parents, letting Uncle Ben live, making him willing to kill, changing his powers drastically (giving him natural web-shooters wasn't that drastic a change), etc.
However, if you want to tell a story about a successor to the Spider-Man mask, and have that kid be black, that's totally okay with me. Super-heroes get successors all the time.