Nicolás Palacios Navarro comments

@Alex80

Recently, a very popular Italian comic artist was forced to change the cover of one of his works because he received some complaints by two Korean artists. In the cover there wasn't even the full rising sun flag, only the rays that could remember it. The Korean artists told him basically he was using a Nazi symbol, so he changed the cover. 

Interesting. A similar thing occurred in Los Angeles recently. Koreans objected to a mural of Ava Gardner which exhibited a “starburst” pattern in its background. They claimed that the mural—contrary to its actual content or the intent of the artist—promoted Japanese nationalism.

https://www.latimes.com/local/lanow/la-me-edu-koreatown-school-mural-dispute-20190529-story.html

@jeancolmar

This practical Jeeves answer is that Japan has one solid good national flag that offends no one. Why have two, particularly a Navy ensign?

Why not? Japan isn’t the only country to make use of its naval flag as a popular national symbol. In Chile the national flag, as well as the navy ensign, and presidential standards are all common sights at international sporting events. The navy jack gets the occasional grumble from Bolivians and Peruvians, but generally nobody cares. It’s up to each nation to choose and wield whatever national symbols they want on their own soil.