It's ultranationalism, and too narrow-minded.

这是极端狭隘的民族主义。

Whereas the low-quality nature of Yamato such as narrow nationalism, national selfishness and ultranationalism becomes its root shackle in the process of globalization.

但大和民族的劣根性：狭隘国家主义、民族利己主义以及极端民族主义却成为其文化国际化走向中的根性桎梏。