You Don't Think You're the Best

 If you have to lie to yourself about who you are I don't know why you even get up in the morning.

 The Japanese consistently say Japan is best. Pretty normal. In a relative sense, they're not wrong - Japan is decently good if you're Japanese.

 However, the Japanese don't actually think so. They have to lie about your country. They have to lie about their own country.

 Why not take them at their word? They themselves say they can't rely upon the facts. They themselves say only falsehoods can support the notion that Japan is best for the Japanese. Weird anti-flex, but okay buddy.

 

 If you can't tell the truth about your own society, it's well doomed. The society will contract an infection, nobody will be able to admit the infection is a disease, and consequently nobody will be allowed to treat it. There's a sociological ebola dose with your name on it.