This man speaks the truth.Definitely
Just put two girls of any type together and they will immediately begin sizing each other up based on who is more attractive; there is a changing ranking system that is partly ethnic, and right now Asian girls sit at the top (mainly because they're seen as more feminine than white girls)
You can actually test this out yourself
Find a group of girls of mixed ethnicities in a bar (in London this is not difficult, all kinds of girls in media etc work together)
Jump in, say hi, talk to the white girl first, then immediately start talking to the East Asian / South Asian girl, making it clear you find her more attractive
Watch the fireworks