I only ask that so we can provide a specific example of how you cannot ignore the world's problems.
We live in a fully connected world. It sorta blows me away that often people on the freakin internet don't seem to grasp that. But understand, for instance, that the technical connections of the internet itself is based on international cooperation. So those wars you don't seem to care about could even affect... your ability to express that you don't care about them. And that's just one of a million other examples. Chances are the device you typed that post into came for a dozen or more countries as well--and international trade is affected by wars.
USA is safe