Key takaway from a Vancourve Sun article about it:

In his research, Columbia University economist Ray Fisman did not find any evidence that white men prefer to date East Asian women. And even though Fisman discovered a significantly high pairing of East Asian women with white men in the U.S., he concluded it was the case only because East Asian women “discriminated” racially against black and Hispanic men

The study:

https://www0.gsb.columbia.edu/mygsb/faculty/research/pubfiles/866/racialPreferences.pdf

Credentials:

-Study by 2 highly-respected ivy-league economists (Columbia University's Graduate School of Business)

-Funded by the National Science Foundation (bizarre they would fund it, but proves it's not a "badly done" study.)

Thoughts:

-Yes asian fetish exists. But it is fairly fringe. Asian women have a vested interest in complaining about it to deviate attention from their part of the equation (a "white fetish" by them).