"God Bless Our Troops in Harms Way."
Travelling half way around the world to marry some person you've never even spoken with would just be nuts.
"Men did not love Rome because she was great. She was great because they had loved her." -- G.K. Chesterton
Something to think about: If a young women is conservative enough to believe in traditional gender roles, imagine what her parents are like!! Now, do you think those parents are eager to see their daughter marry someone from a different culture, and possibly have her move to another country and have non-Asian grandchildren?
And if the parents don't approve (not necessarily a given), how likely is it that your traditional bride-to-be is going to go against her family's wishes? And if she's free-thinking enough to go against her parents wishes, maybe she's open-minded enough to reconsider the whole submissive wife thing once she's had a few years of serving you dinner and washing your undies
However, I do acknowledge that there are foreign women who are genuinely attracted to foreign men and we do have a reputation for being romantic.