The "human nature" argument is so old Marx literally debunked it before communism was even really a word.
But I understand feeling depressed about everything. The power of capital seems inescapable and it feels like oppression and fascism is human destiny. Perhaps instead of a cold dialectical analysis, may I suggest "Mutual Aid: A Factor in Evolution" by Peter Kropotkin instead? I think it's a more emotive and soulful piece of writing that may just for a moment restore your faith in the fact that there are at least some people out there who really just want things to be better, not just to be in charge, and that perhaps such a drive exists within all of us to different capacities. I don't want to run anything, I just want housing security.