Even leaving ethics aside, people need to have an understanding of their surroundings in order to protect their basic needs. A lot of people value the nuclear family above their collective group... But things have gotten so bad that we are only a few generations away from the assimilation and end of mankind.
People are overall so possessed by their own greed that they don't see the value on the survival of their own group in the long term, or rather, they can't admit it out of fear of being seen as weak.
I think this is overall on of the greatest social problems affecting society nowadays, nationalists can't afford to remain neutral and have to push these people, be it extreme capitalists and evil nihilists away from institutions.
there doesn't seem to be anything here