OK, so your assumption really is a black woman cannot succeed on her merits. At least we've finally arrived at your baseline viewpoint.
BTW, I can't believe you're willing to put such terrible arguments in writing - you once knew a black female who was a complete idiot, so that means Lynch is also a complete idiot because, you know, Lynch is also black and a woman, and they're all the same..... Seriously? You can't believe that's an argument anyone serious will accept do you?
And, no, it's not "lame" to assume that people with a long and accomplished career are competent and rose to those positions based on their merit.
She graduated from law school in 1984. She has a 30 year career after that, TD. Unless you have some information you're not telling us, assuming that after a 10 year career in the U.S. Attorney's office, the last two as the U.S. Attorney, she (for example) was signed on as partner at a major law firm in D.C. and remained there for a decade as partner "solely" on the basis of her diploma hanging on the wall is, well, racist.