Uh, Queerty? The NGLTF report that "thoroughly debunked notion that African-Americans voted overwhelmingly" for Prop 8 was itself thoroughly debunked.

And let's say the initial exit polls that showed Prop 8 getting 70% of the African American vote were off—hell, let's say the NGLTF study that found that "just" 58% of African Americans voted for Prop 8 was correct. Those kind of numbers—upwards of 58%—are generally considered landslide territory, or "overwhelming." Remember this election?