Why should borders be sacrosanct?
“It is clearly unreasonable to expect all disputing couples to behave like the Czechs and the Slovaks [who peacefully separated in 1993]. But is it reasonable in this day and age to set treat secession as somehow worse than unwilling union?
“Countries and territories change. For one reason or another, the ethnic or religious mix shifts; technological advances may dictate a sharp rise or fall in economic fortunes. Why should state borders not be subject to pragmatic fluctuation, too?