Ok well since you're not even going to try to convince me I guess I'll try to convince you. It would be a lot easier if I had a scanner, but here are some stats for ya, from the book Racial and Ethnic Groups, by Richard T. Schaefer:
In 1970, there were fewer than 2k black elected officials in the US, by 2002 there were over nine thousand.
In 1960, 18.2 percent of black males and 21.8 percent of black females graduated from high school, by 1980 both those percentages were up to 50.8 and 51.5, and by 2007 they were at 81.8 and 82.5.
In 1960, 2.8 percent of black males and 3.3 percent of black females graduated from college, by 1980 both those percentages were up to 8.4 and 8.3, and by 2007 they were at 18 and 19.
Median family income for black families in the US rose from $1,870 in 1950, to $12,675 in 1970, to $39,879 in 2008. (The book I'm looking at is not clear as to whether this is adjusted for inflation, so I don't know about this stat, I could cross reference but I'm too lazy)
In 1972, 64% of American cleaners and servants were black, by 2007 that figure was down to 19%, and in that same period blacks increased their relative share for all the other occupations listed on this chart (engineers, lawyers and judges, physicians, nurses, college teachers, other teachers, social workers, managers, sales workers, firefighters, police and detectives).
And of course: