Is there an equivalent in US culture that would cause an equal uproar with companies forced to take such drastic action?

Implying that the USA isn't already there or close to there? When Antifa takes over the country, the infidel and non-believer classes are automatically translated to misogynists, transphobes and racists and will be executed pretty quickly.

Interesting writeup, that symbol must be a really big deal to spark such backlash, or do you feel it's due to Japanese culture being more polite and such?

There's no Japanese culture here, only Korean culture. Also a big laying dogwhistle is an alarm to most sane people. Unsure why are Americans so domesticated though, this is how they push degenerate crap like the Owl House to children.