This is a political issue. Patriotism is common in socialist countries and centralized countries, and it is precisely love for the current government. In developed capitalism, this situation is called nationalism, which means emphasizing the interests of ethnic groups, and the issue of interests is a political issue. Accompanied by the phenomenon of traitors and living abroad (or smuggling abroad). Morality is more a cultural category, the accumulation of history and civilization, rather than a slogan at a certain moment. Just think, is it necessary to emphasize "patriotism" in a prosperous, free and democratic country?
The textbook definition quoted in the previous answer also illustrates this problem. Is the moral requirement high? Or "political principles" and "legal norms"? Loud and clear.