What? I seriously don't understand this. Find what deals? How does it make it harder?
> Nations are fake.
In what sense? Surely, given the opportunity, most people would prefer to live in Sweden as opposed to Liberia. Most would pick US citizenship over, say, Vietnamese.
The most instructive places to look at in that direction are border areas in general, and the Middle East in particular.
Often times when you look at border areas you will see absurd divisions of people who would normally work together. The border between Ireland and Northern Ireland is a strong example.
For the clear negative impact of borders though, the absurd creation of most Middle Eastern countries by British diplomats is one of the clearest examples. The arbitrary lines that were drawn through tribal lands and small fiefdoms, the people left without countries of their own (e.g. the kurds) or brought to power over vast swaths of other people (the Saudis)- it is all as absurd as can be, and has proven as poisonous as expected.