IMO this is not funny -- think of "God" surrounded by "Shit" and think again how many people would be irritated.

Sure, the author is free to put any text in the explanatory image. But I'd say his arrogance is going too far...

I don't found it a good joke. Chinese cultures (Chinese as a race but not as nationality), including confucianism, is also inherited by other countries like Taiwan and Singapore, and regions like Hong Kong and Macau.

Variants of the confucianism culture are also developed in Japan and Korea.

So the maintainer may also insulted Taiwanese, Japanese and Korean unintentionally, apart from Chinese (as nationality this time).