Like my piano teacher says of classical technique, "If it were easy, everyone would do it." There's always fierce resistance to change. Change underlay the Civil War for instance, the last major war fought in English speaking North America. But though the Northern States could have simply walked away from the slave holding states in the South, they chose not to walk away but instead fought at terrible cost in blood and treasure for an ideal or perhaps a bundle of related ideals. I don't see us abandoning those ideals now.