Don’t know who downvoted you, you’re absolutely right. Just as an anecdotal example, my grandmother was an extremely intelligent and progressive Italian-American woman, but Columbus was the one thing she would never budge on. It goes back to a time when Catholics had to constantly defend their loyalty to America. I’d imagine St Patrick’s day was a similar thing. It was these immigrants’ single point of pride that other Americans would respect and understand.
To me this is the same philosophy adopted by Israel when they kill Hamas leaders. This isn’t chess, folks. Killing the king does not end the game.
Name one time since Hitler that the death of a world leader has resulted in the end of an armed international conflict.