I’m as much for altruism as anybody else, but as a biologist I can’t pretend that Darwinian evolution promotes unbridled cooperation in groups of primates with no room for selfishness and competition… it is quite the opposite actually. Primate societies tend to be hierarchical and unequal, even within otherwise united groups.

Not to say that Darwinian evolution makes cooperation an impossibility; social conditioning and education overpower evolutionary instincts all over the place in human society. One only needs to look at things like religion and political ideology to understand that evolution and instinct are not the primary movers of human behavior nowadays.

Edit: To be clear, I am not saying that that supposedly Darwinian political beliefs like social Darwinism and naziism are driven by natural human behavior. I just want to point out that Marxist Leninist ideas can’t make that claim either. Almost no human ideas or institutions can. Except for cuckholding. That is a profoundly Darwinian behavior.

There is a very detailed article on this topic by the evolutionary biologist Stephen Jay Gould, titled ‘Kropotkin was no crackpot’. He points out how Kropotkin’s ideas are closer to the current understanding of evolution than the ‘social Darwinism’ and many other popular perceptions of Darwinism.