Franklin, I see your point in that, if anything, Martin Luther King Jr. Day should be named Civil Rights Day instead, or something along those lines. But it'd still be on his birthday, so I dont know if that's too much credit for you ;p
But seriously, it's not nearly as big of an issue as you make it out to be. While he probably does get more credit than he deserves, that's the fault of society's ignorance as a whole, and not the fault of the man himself. So if anything, be angry at stupid people. Works for me at least!