Surely if you can take the time to put Ludacris lyrics into a cartoon, you actually listened to the song (the same one infamously cited in an appellate opinion) and might have noticed that Ludacris clearly distinguishes "hos" from other women. While I find it hypocritical to deprecate a woman's promiscuity or actual prostitution while availing yourself of it, and am uncertain of whether I'd rather be a 'ho or a housewife in his binary, Ludacris explicitly is not singing about all women: "Not all, just some / You ho who you are." (From whence comes, I suppose, Chris Rock's claim that women will dance to the most misogynistic music and when Rock points out how awful the lyrics are, women will retort, "He ain't talking about me.")
Within my limited knowledge of rap, black women who are seen as strong don't get dissed even by rappers; Sir Mix-a-Lot actually paid tribute to their attractiveness: "You can have them bimbos, I'll keep my women like Flo-Jo." There's probably someone who has picked on Secretary Rice, but that's an unfortunate side-effect of political disagreement. Ludacris had a much-publicized beef with Oprah when she criticized his lyrics on her show, and neither he nor the other rappers she called out seem to have taken the fight to the studio -- indeed, Ludacris even urged his fans not to boycott her.
I'm not saying that all rap is exactly a model of female empowerment. There's a fair bit of misogyny involved. But on the other hand, rap scores points for being the most politically conscious music currently out there. And of course, cherry-picking a few songs is kind of ridiculous when you're claiming to condemn an entire musical genre.
Unfortunately, despite being White, I feel my Whiteness credentials aren't sufficiently strong enough anymore to rehabilitate hip-hop before my predominantly White audience (this is what happens when you focus on racial issues too much--the "enhanced racial standing" you enjoy begins to slowly fade away). So instead of offering up the concluding line myself, I'll defer to a man whose White-cred is unassailable: Roger Ebert:
Rap has a bad reputation in white circles, where many people believe it consists of obscene and violent anti-white and anti-female guttural. Some of it does. Most does not. Most white listeners don't care; they hear black voices in a litany of discontent, and tune out. Yet rap plays the same role today as Bob Dylan did in 1960, giving voice to the hopes and angers of a generation, and a lot of rap is powerful writing.
I grew where you hold your blacks up/ Trap us, expect us not to pick gats up/ Where you drop your cracks off by the Mack Trucks/ Destroy our dreams of lawyers and actors/ Keep us spiralin', goin' backwards. --Jay Z, "Dope Man."