No no no.
I was not happy. Not that the idea is bad - in the future, two different kinds of cultures with their origins on Earth attempt to co-exist on an alien planet. One, the older, is descended from Portuguese-speaking criminals, who were deported when the planet was a prison colony. The younger, "The People of Peace", were also deported, but they are descended from members of a huge peace movement in the spirit of Gandhi and Martin Luther King, a movement so large that it threatened the rulers on Earth. Now the older culture, the Bosses, try to dominate and rule the younger, the Shantih, who want to try the theories of peaceful resistance in a revolt.
While I love the imagination present in the description of the alien world, the book gets overly political and preachy. Not subtle enough.