Things change so fast these days.
Technology is obselete (spell?) within a year.
Our Grandfathers were forced to patriotically 'hate' someone for that was one of the motivations in conquest.
Look at the boys of Sydney and their Anti-Middle-Eastern hatred born from American Anti-Terrorism propaganda during the Cronulla Riots ...and thats from another part of the world against another part of the world.
I can never blame older generations for their pros & cons becasue thats the world they had to live in or take part in.
One era's Ally is another era's Enemy.
Who would think that China will invade north into Siberia and go to war with a former Communist Ally and Russia will call for help from a former Cold War enemy to fight the Chinese.
If old Mr Fogey wants to hate the Japanese because of War and I want to hate the Nipponese due to Whaling and over-fishing and the next generation wants to like the Nips for no reason at all ...well the weather changes all the time and if you don't change to meet the conditions, you will be caught out in the storm with only a singlet and shorts. Mr old Fogey won't change, not by much anyway. Some do, but that is a luxury that most people can't live with.
So if you see Mr old Fogey or his mate Mr old Kodjer and they express bitterness, resentment or hatred for a certain people or race - do forgive them and understand that they are entitled to that feeling. If you wish to change that feeling of animosity - then you/we must be prepared to put in a good effort to do so and not expect them to change by themselves.
I think Clint Eastwood's "Gran Turino" is a superb film (from a nation that is running out of superb films) that brushes upon this subject with much thought, consideration and hope.
I've worked 10 years in Aged Care to back up the above said