“If human civilisation is to evolve, it must find a way to assume an equitable egalitarian state among all men.” Bullshit! And dangerous bullshit at that.
People who say they want “an equitable egalitarian state” usually want to steal from the rich and redistribute that wealth to the poor. You can’t do that without a bloody revolution followed by a totalitarian dictatorship. That is not evolution, it is revolution followed by the devolution of society to a state of equal misery.
You should listen to your own quote: “If there is to be a future, then we better make sure we’re on the right page to make it happen, and not just engaging in delusional wishful thinking.” Your recommendation above is delusional wishful thinking.
Capitalism is a durable, stable constant, and it may provide a permanent state of sustainable equilibrium, but over time it has produced great benefits socially, economically and environmentally, for the future of human civilization.