You Vs Nation

A nation is its people, each one of them. In the name of nationalism, if you try to hit, heckle or hate someone just for not standing up for the national anthem, you are no more nationalist that him/her. There are better options to make your case before him or her, if you are really interested in showing the nationalistic spirit. But, even before that, make sure that it is the national spirit towards each person of the country that is driving you, and not just the mere symbolism. 

A Nation is for people, everyone of them, who is an end to oneself (as Ayn Rand calls it). It is a system that is supposed to make each of our lives better with vital freedoms to be and become whatever we want to, and live however we want to, for the time we have on this planet. But, we are being drawn towards trivial symbolisms in the name of nationalism, while dark clouds are looming over all kinds of freedoms. It's a time of reckoning, and it always has been, I guess.

Nationalism is an infantile disease. It is the measles of mankind. 

 - Albert Einstein