Should old buildings be replaced by modern buildings? Why? (Debate question)

I can't. Because the ancient architecture has unique artistry, it is the inheritance of China traditional culture; Some old buildings are the crystallization of the combination of Chinese and western cultures (such as Kaiping Diaolou and Guangdong's unique arcade). If all the old buildings are replaced by modern buildings, what history and culture can this nation be proud of? So we can't just "break the old and establish the new". Remember Jackie Chan's donation of old buildings to Singapore? What does this mean? Therefore, what we should do is how to keep these meaningful and valuable old buildings in a planned way. Don't let me find a historic building in an ancient country with a long history and civilization.