Probably been said before, but I have to get it out:
Why can't you see yourself in someone who isn't like you in every dimension?
I see a lot of myself in Abed (Community, for those of you who suck), but Oh Gee! I'm white, so how can I possibly relate?
And what if the creators did try to add diversity? Do you think they'd do a good job, or would it come out poorly? You should be taking aim at whatever keeps people from relating to differently-colored people, because that's the reason Girls is so white/unrelatable.
And this article is symptomatic of that; obviously Girls can't represent you because you're black, and they're not. Sister Sister sucked, but hey, at least the stars were black women, right? That's a shit attitude, because while there are cultural differences that overlap with skin color, they're not the end-all of human experience.
Are you more like the girls in Girls, or the ladies of Living Single?
Judging by your job, the way you write, and where you live, it's the former.
What I'm trying to get at is this: if you want entertainments that capture every facet of your life, write them yourself, because no one else can or will. But more than that, get over seeing race as this binary thing, as if 'black' is you and 'not-black' is somehow unrelatable. If you want to see race as binary, then you're going to have to use the average experiences of a person of that race as your standard for judging what is an isn't 'White' or 'Hispanic' or whatever. And based on some of your other relevant demographic information, you're more a middle-aged white guy than a 30-something black woman, and there's some asian guys a lot 'blacker' than you.