The Japs have found the secret to making Tiong tourists behave.
Prominently display the 'taboo' items wherever there are Tiongs: Tibet independence, HK independence, Taiwan independence, Tiananmen 8964. Winnie the Pooh etc.
Do this at restaurants, hotels, tourist attractions, airport lounges, immigration checkpoints etc.
The Tiongs will suddenly become very meek and docile, they are so chickenshit they won't even dare to take out their phones and take photos and videos.
That's how you deal with their kind.