As long as they don't flex their power by bombing, killing, or stealing natural resources, it's hundreds of times better than genocidal bloodthirsty countries that ktards worship.

Will it be a lot cheaper to visit Japan or not?

Why not ok? It's their country and they have right to do so? Japan also have right to ban Chinese citizens from entering their country. Just like how US ban entry to citizens of some countries. Whether they are tourists or singers does not matter.

it's just like stopping concert because got lgbt element 

It is their country, why you kepohci?

As long as they flex their muscle peacefully, no need to kepohci.

Not the only one, even legendary Ayumi Hamasaki was affected.

Petty Communists had plenty of time to decline ahead of time, canceling events right as it happened showed their lack of class.