You can refer to a person's great love for their nation as nationalism. 民族主义
noun [抽象名词] 国家主义,民族主义;民族自豪感,民族优越感;民族自决主义;民族特征(或习惯,惯用语)
I think we'd better leave the subject of nationalism. 我想我们最好不要再谈论民族主义这个话题了。
I think we'd better leave the subject of nationalism. 我想我们最好不要再谈论民族主义这个话题了。