Even in the heart of the largest Asian communities anywhere in the U.S. they commonly hire Mexicans because they work hard, work cheap, and won't open a competitor down the block 6 months later.
My Asian clients who run some very successful manufacturing, marketing and distribution companies also hire mostly Mexicans.
Surprisingly, both Mexicans and Gringos are correctly configured to handle a stir-fry scoop and can be taught to do so in short order.