I hope it will happen in our lifetime, a visible chance in human nature and the world outlook of humans altogether.
P.S I am a little drained, so I am not so long in my answer, but I agree with most of your arguments on some levels, I just am not swayed towards one opinion more than another, I am going to see it with time and act accordingly, try harder when pushed and even when not. As long as we care, there will be a better future :)