For the umteenth time, not trying to legislate other countries =/= isolationism. See: Switzerland.
When we no longer have the power to step into conflicts Switzerland will be gone in the first world war that occurs, countries like them have the luxury to exist neutrally because we are here. Had we not stepped into world war II when we did they would have either become part of Germany or owned by Russia.
The difference between pigs and people is that when they tell you you're cured it isn't a good thing.