It would be unfair to stereotype any designer label originating from Asia is a fake just because China is the largest country in Asia. You had better be careful when making public generalizations such as these, or tpf members from Asia will find you being offensive to the point of being racist. I agree with b3stbuy that there are legit sellers in Asia.
The REAL reasons to be concerned about when buying items stated as originals which may be misrepresented just because they originate from any country not just Asia, is the country's regulations and tolerance for copies. For the record China, Vietnam, Thailand, and South Korea do not regulate the sale of fakes, as in you can shop at the city's major shopping mall and end up buying fakes. My boss accidentally bought a fake Bree from a department store in Busan, Korea! In Korea the prices and workmanship of fakes are identical to originals, they make great copies down to the hologram to serial number, to dustbag and paperbag packaging. Conversely in countries like Singapore and Hong Kong, you can't get fake designer brands in department stores, they are banned. However subways below ground level may have makeshift illegal "stores" where sellers brazenly display fake items on a big sheet of cloth on the ground, so they can make a quick escape when the police come for them. This doesn't stop them from selling online where it's harder to detect.
I'm pretty sure you can find fakes anywhere in the world. I have seen them in public markets in New York! I have purchased fakes from ebay sellers based in US who claim the items were original on their ads!
To answer OP's question, your guess is as good as mine.