The Invasion of Peasant-Earth

In 3683AD, fifteen centuries after a Nuclear War, the people of planet Earth are much like human beings have always been. Except that they have a permanently peaceful, non-violent, racially diverse, world-wide society in which everyone (as well as their companion animals) has enough to eat, a roof over their heads, comfortable clothing, and interesting, useful work to do. All without a coercive government.
When monsters from Outer Space invade, can the Earthers' happy, fulfilling, semi-anarkhist culture survive the inherent Racism, Misogyny, and Love of Violence of the Invaders, who are all too human themselves?
Will the Invaders be able to impose their militaristic government upon the free people of Earth? Or will nuclear-hell destroy humanity's natal planet and all its citizens?
Readers of Joan Slonczewski's excellent novel, A Door Into Ocean, will enjoy this book.