I agree that execution is the key, and I don't have the answers for a lot of the questions.
I guess we (humans) will never achieve the equality that everyone agrees to, because every one has his or her own idea of equality, but maybe that shouldn't prevent us from trying.
When you're planning on taking the money for your utopian pipe dream from other people by force, you really ought to have a better justification than "it doesn't hurt to try!"