I'm going to speak from personal experience here.
I've dated a number of American women. I've dated only a few non-Americans, and most of them
happen to be Asian, but that, by no means, indicates that I am a "rice chaser".
I do not mean this to be a rant against American women, so with that disclaimer, I will continue. To my experience, many American women have been raised by their parents and their culture to have an attitude of entitlement and empowerment (often at the expense of males), coupled with a propensity of never accepting guilt or blame for anything, instead shifting any culpability onto the male.
A fantastic example of this sort of thinking is found in a certain Miss "Divalion's" livejournal post:
No More Mr. Niceguy, as well as books by feminist authors such as Barbara Whitehead's
Why There Are No Good Men Left.
I've also noticed that American women are, in general, more likely to sleep with a dirty, cheauvanistic French or Italian guy than a clean, articulate, intelligent Arab or Asian guy.
All in all, after spending years dating American girls, I'm just no longer attracted to them. This includes Asian Americans. In my opinion, if you are born in America, you are American, regardless of your skin-color or ancestry.
So I've dated mostly girls from Taiwan and Japan (although I've also dated a Columbian, a Brazilian, and a Turkish girl). I've found that, while women are the same the world over (just as I assume men are), the
cultural outlook that they have is different.
All-in-all, the nicest girls I've dated were Taiwanese, hands down. I've noticed Japanese girls are also very different inside from their outward projection (but it seems this is true of Japanese people in general, due to their culture). As a straightforward American, this can be difficult for me to deal with, and has caused some problems. Japanese girls (on the surface) seem very cliquish, but you have to get beneath the outward appearance.
I will admit that I have a decided preference for Chinese/Taiwanese and Japanese women, but a lot of that has to do with my fascination with their cultures. I especially enjoy being around foreign women who are interested in Western/American history or literature (although they are rare birds indeed).
In addition, I feel like American women generally don't appreciate nice guys or gentlemen. On the other hand, some foreign women do, especially ones who come from cultures that tend to tolerate cheauvanistism more than America.
Like I said, these are simply impressions I've gotten from the experiences I've had, they are by no means factual. I've only dated American girls generally from the Philadelphia and New York areas. The foreigners who come to study here also represent a very small and haphazard sample of their respective populations. I try to keep an open mind, and although I am, generally, unattracted to American women anymore, there's always a possibility that I'll meet one tomorrow who knocks my socks off. I only posted this because my experiences may shed some light on why some American men are seeking out foreigners instead of American women.