Very early in my business career, (Circa. 55 years ago), I was a member of our local 'Junior Chamber of Commerce' and the very progressive chairman organised a regional secondary schools 'speaking' competition which was held in front of a very large audience.
We were all asked to propose topics for presentation as a speech,, and my offering was; 'National pride is dangerous'.
Two of the contestants chose this as their topic, and I can still remember clearly the remarkable depth of logic and reasoning they both came up with, both right and left wing.
They each foresaw many of the world's current international problems and would put modern politicians and theorists to shame for their honesty and clarity of thought.
Their notions were anathema to the then current thinking, however, and caused quite a stir at the time.
In reality, I don't think their efforts altered people's thinking one iota, of course.