The phenomena is more than just about celebrating holidays. I’ve noticed it with groups of foreigners who either have trouble integrating or are unwilling to integrate, failing perhaps to learn the local language, a tendency to rag on the locals and their culture comparing everything to how it is back home, which is perhaps where this over inflated sense of national identity may stem from which wouldn’t normally be as pronounced in their home country and yes I have observed that in Taiwanese communities living abroad as well.
I don’t think what you are describing here is patriotism as much as it is poor adaptation to a new environment.
In New York.
I been with Taiwanese student groups/club in Hawaii/ Japan/ New Zealand that have some event(party/dinner/parade) for 10/10 day a few years ago, and last year in Taiwan some of the same people do nothing (use the holiday to go out of Taiwan)to celebrate so think Taiwanese overseas do miss home(Taiwan) and celebrate national days more so.
Happy Independence Day, number 249!
We got Joey Chestnut doin what Joey Chestnut does second best, 70.5 dogs in ten minutes flat. Puttin his stomach on the line for Old Glory!
Happy July 4!
https://www.washingtonpost.com/sports/2025/07/04/joey-chestnut-nathans-hot-dog-eating-contest/
Tell you what, it’s either the 249th night of America’s 4th of July here or the Battle of Fallujah 2.0. Not kidding, I got windows rattling non-stop and pinging like crazy. Monster celebration here. Taiwan’s firecrackers got nothing on this.
Some of these reports sound illegal, but I ain’t complaining. We’re due. Next year is probably gonna be pretty nuts.
Feel sorry for the pets, but wow.

Beautiful song for a beautiful country. USA is #1.