I took read Mutual Aid by Kropotkin.

As he puts it in the very title: "Mutual Aid: A Factor in Evolution".

Key being a factor Not the factor

At the time, most of research into evolution revolved around the idea of competition as the driving force in an arms race for resources between organisms. Obviously this is still true, though like Kropotkin observed, we also understand that there is harmony and cooperation both between organisms for each others benefit and in the broader sense of ecosystem equilibrium.

I think it's important to have such discussions anyway because any doubts must be addressed not via faith, but via critical examination, so that we find the more correct reason to maintain revolutionary optimism, it is precisely to defeat defeatism with a resolve forged in fire of scrutiny. That said, I think this is too heated and came across as an attack, I also don't want to play into anyone's hands, I was being needlessly pedantic, I retract my statement.