This question is flawed and false.
First, your claim is wrong. Minorities DO date other minorities.
Second, a brush up with statistics might prove helpful. From a statistical standpoint, in the USA, MOST men are white. As such, if all things are equal, MOST minority men should be dating a majority/white man. This is simple because the objective number, or chances, or opportunities to "fall in love" with a white man are far larger. This is also why MOST left-handed people date right-handed people. Some left handed people date left handed people, but it is statistically more likely, all things being equal, for a left handed person to fall in love with a right handed person.
Third, it sounds like you're one of those self-hating black guys. That's fine. I could really care less. I simply hope you (1) embrace it or (2) grow out of it and realize that beauty, insofar that it is skin deep, transcends ALL races. While you might have a particular preference or flavor, to say that you wouldn't date American blacks is just a sign of emotional immaturity. I bet if you give it some time, you'll come around. Lots of people (white included) take time before they sexualize certain races. We live in a society with a Euro-centric standard of beauty, so sexualizing whites is easy. Most people also naturally sexualize their own race (because they're exposed to it daily). You didn't. This sounds like that same kind of self-hating that deems "lighter is righter" wherein light-skinned black people are somehow better looking, more sexualized, and more idealized (by blacks and whites) than darker-skinned black persons. This stunted mindset teaches that Barack is "better looking" than his wife Michelle because she's darker. It's also what fueled Michael Jackson to bleach his skin, and to adopt WHITE kids and claim he sired them (IF he had a skin disease, it wouldn't pass to his kids and they'd be biracial).
Fourth, saying most American black men are too ghetto is simply wrong. There are tons of ghetto white men. There are tons of ghetto black men. No one race has a lock on ghetto. While, proportionally, there might be more poor blacks than whites, numberically that is not the case, and there are plenty of college educated and professional blacks. I know, I work with them all the time. I was just before Judge Bunyan (a black man), opposing counsel was black. Several business clients at "the big 4" accounting firms are black professionals. I say you need to expand your social circles if this is really a problem for you. Where are you finding these "ghetto" black guys? "Black nights" at the local gay bar? Just be mindful of where you're selecting men.
And for the record, you're saying the following isn't hot?
If you don't find that sexy, I say good, more for me