It kinda works both ways. When Germans hung up their national flag when the UEFA world cup was in Germany, a lot of people harkened back to the third reich times.
All I can say is that I don't care if you like your nationality, but I think love of nation is similar to love of religion - unnecessary if you have a strong enough identity. To people who ask me what I am (because in Germany, the question of nationality is literally "what are you"), I generally answer with "I'm human".