Will national identities ever be replaced by a single global identity?

I don't think national identities will disappear completely, because cultural roots run deep in how people see themselves. Even in global cities like Shanghai where I live, you can see this - during festivals like Lunar New Year, people still follow traditions that have been passed down for generations. For example, my colleagues and I might use global apps for work, but when it comes to holidays, we all return to our hometowns for family reunions and local customs. That said, younger generations are definitely blending global influences with their national identity - like how we celebrate Christmas casually while still valuing Spring Festival above all. It's more about adding layers than replacing one identity with another.