My local Asian market has made their own decisions.
I noticed they now only stock food made in Japan, Korea, Thailand, Taiwan, and Singapore. The Chinese brands of noodles, grain beverages and the like are entirely gone.
I asked, and the lady who owns it said "No China! No sick customers!"
So...the market's deciding, looks like.
And there's definitely a quality issue. Just examining the packaging of a Korean cereal drink, I noticed high-quality safety seals, zero mis-spellings and perfect English grammar on the label, ISO 9001 certification, product safety assurances, US and Euro nutrition content listings, and ingredients that were higher quality. Even the label artwork was sleek, a smoothly fitted matte-finish shrinkwrap label on each bottle with current artwork and nice logos, all Helvetica text, and currently-in-style colors. It could have come from a studio on Madison Avenue or in LA.
In one place that still had Chinese stuff, I noticed a "Mr. Boss" knockoff of Japanese Suntory BOSS iced coffee cans. Except the Chinese label had horribly drawn artwork, obviously erroneous nutrition information, and an Engrish bit of text. The can welding and printing was also suspiciously poor.
So...quality.