It’s difficult, though, to construct a system - even in the abstract - that works better.

It's really not, our history is full of better systems. Our current system is relatively recent and is one of the worst things we've made as a species to the point it's going to wipe us out.

I’m sorry, I disagree. Very firmly. There are evil people. Broken people. People who feel no empathy, show no mercy. And there are a good deal more people who think they are “good” but are really just passive. See also Nazi Germany.

You can disagree all you like, but the fact that we form communities, seek out and connect with others, and feel empathy says otherwise.