I stand by what I said. Apple used to be the leading smartphone manufacturer in China, now they aren't even in the top 5. Sometimes things change, and I doubt China's in shambles because Airdrop isn't ubiquitous. I see no reason why Japan would be different.
The notion that American tech companies are invincible is really only a view held by Americans. The overwhelming majority of people I speak to internationally don't care that much about computer brand loyalty.