Truly Patriotic

Is 'patriotism' a byproduct of all the wars and battles which had been fought by tribes, clans, cults, religious groups to survive? Is it soon becoming an obsolete emotion? Because this generation is born and brought up in comparatively calmer surrounding (than the world wars and British Raj) and also this generation lives all over the place. We are born in one country, study in another, work in the third country and then retire in a new country altogether. So which country are we going to be 'patriotic' about? And I do not mean for a sports game, I mean in the time of war.

Is 'patriotism' one of the hurdles in the path to world peace? If there was no patriotism, but only general regard and respect for mankind, no matter where they were born or bred, wouldn't the need to own, capture, secure and protect a manmade boundary disappear? It is wonderful to be proud of one's heritage but if that converts into thinking that we are superior to the other cultures, then it is not really a noble concept.

From what we know Earth could be the only planet with life ... found anywhere nearby or probably found anywhere in the billions of galaxies, it would be great if we are patriotic for the Earth in its entirety and save its environment, life, and beauty!