I agree with a lot of points, Chase, but also disagree with lots of them, and it's coming from repeated personal experience.
Below the points:
Chase said:
Japan ...
Sweden ...
In Vietnam..
Chase, the first two examples you mention are typical "enclaves": you can find periods and countries where this or that is more popular, and as far as I know there might MANY of them, but that doesn't change the overall trend, which seem to be otherwise rather clear in the present era: considering the whole world over white men seem to have a (slight or not, depending on location) bonus.
The second two examples, as you say yourself: "nearly as", confirming white men are on top even there.
Chase said:
In places with lots of sex tourism, the appeal of foreign men gradually diminishes. For instance,
Lots of sex tourism brings a lot of "disgusting old men", as a girl explained me how they call them in Vietnam -funny she only dated white men though- and it diminishes the appeal, and YET, it also proves the overall point as
even there white men
still have an advantage
in spite of the disgusting old (often white) men.
Indeed I have to disagree with the following you write:
Chase said:
Thailand and the Ukraine...
I've been in Thailand, several times, Bangkok is the biggest city with LOTS of whites and LOTS of prostitution, YET you don't just get a bonus, you get a... HUGE bonus.
I banged hookers -plural- there
without paying (two LR written about it).
I COULD NOT do it in Europe, or at least NOWHERE as easily, or at least it happened only once,
maybe -not 100% sure she was a hooker
and it was Eastern Europe too- in spite I spent there 20x more time.
From the size of the boost I could experience, if anything, the "white man advantage" is actually underestimated in this part of the world -and I have nothing to gain in saying so, if anything, I wish I saw the attraction I saw only out of skills-.
Also been in Ukraine BTW, twice, and even there you get a sizable boost even though not compared to anything in Asia, in Ukraine it's purely passport based.
Chase said:
Everything from hair to body type is largely culturally influenced ...
Race/skin color preferences are just another culturally influenced like/dislike.
Not everything, Chase.
Preferences are (largely)
influenced, like you say, as most things, but not radically changed to the core.
For example, unluckily for us short guys, height is always good, and just check the tallest nations... White nations monopolize the first positions.
And about hair, well... Pubic hair is only a small corollary part of it.
When were and where are, say, bald men or bald women attractive?
Tell me, I'll gladly bring my bald head there to see it first hand

.
Just as a last example, even though I have no data about it, at least in present times beard seem to be another rather constant one as it seems to be appreciated wherever I go (and which is something white men most often have -and very visible- while it's lacking in other ethnical groups ).