Thanks for the review. In general good account of sociobiology (though it seems -it's hard to tell- that you've misread The Selfish Gene).
One quibble, though (it's kind of a telling one too). You write;
"....that rejects kin selection (which means evolution only acts at the level of the individual) as the cornerstone of sociobiology. He has gone to the other side, group selection (evolution only acts on the group)."
Evolution does not act on individuals. Populations evolve NOT individuals. I know it may seem a small thing, but the distinction is critical to understanding evolution. You have conflated one of the mechanisms for evolution (selection) with evolution itself.