If in the United States Of America you do not know why there is such a thing as Black Theology, then you neither know what it means to be black in America, nor what the Gospel itself is. And if you cannot figure out what it means that there is Queer Theology, the same applies. If on the other hand you feel welcomed by the idea of Prosperity Theology, the result is the same: you neither know what it means to be rich, nor do you know what the Gospel itself is. Finally, of the three, if you only find one of these theologies legitimate rather than only one being illegitimate, then I sincerely hope you are not one of the reasons that blacks and LGBTQ resonate so deeply with the core thread of the Gospel; namely, the promise of liberation from oppression.
Just a thought.