That there will always be communities of interest which will be similarly affected by a particular event or a particular measure is unavoidable. But it is clearly in the interest of unity of the larger whole that these groupings should not be permanent and, more particularly, that the various communities of interest should overlap territorially and never become lastingly identified with the inhabitants of a particular region.#
There are two basic moral frameworks people can adopt when thinking about how to treat others: localist and globalist. The basic difference is the size of the moral community.
Localism is the default human morality. Human sociality is adapted for life in a close-knit moral community. There's an in-group whom we . . .