All borders were established by force... Israel is just more recent, about as recent as every other nation in that region. Jordan, Lebanon, Syria, Iraq and essentially every other nation in the region was formed around the same period.

The issue is that unlike other cases they were never left to their own devices and let sort their own shit out.

Tell me, when was the unification of Germany, and how did its borders get the way they are now? I seem to recall some unpleasantness with American and British planes.