I'm from the USA but do know people from France and from England who have immigrated here.
It used to surprise me the hate the people have for each other. Yet, UK citizens love to travel to France, drink wine, eat, see art and take in cultural things there.
I think the hate has gone of for so long that sometimes these people do not even know why they hate, just that they do hate. That is like Ireland, the IRA has gone on so long hating they don't know how to do anything else.
The Middle East is that way too, these wars have gone on for thousands of years.
In the USA, I think the hate we have for each other is within our own borders. We are separated by our views, being Republicans and Democrats. We are all on the same team, but it sure doesn't feel that way to me all the time. We truly hate each other.