Dear Rick,
You have written a very helpful clarification of "utopia vs. dystopia", and of how it has changed over time. Utopia as a constant way of looking for a better future is a good idea, so long as we remain flexible for new ideas.
My stance is on the Biblical worldview, where (one might say) Utopia is also looking for us, indeed initiates the search for us who have fallen out of relationship with God. The Biblical view puts a solid objectivity to the matter, because Utopia is already there, ready and functioning, as given by the two Great Commandments as given by Jesus (Matthew 22), to love God with all our heart, mind, soul, and strength, and to love one another just like we love ourselves. Hard to improve on that goal, I think - because the Biblical understanding of "love" is doing good for others, not pampering them, but real objective good, as a parent might do for a child. We are thus to love ourselves in that same way.
That being the case, the search for Utopia is the search for how to find and cooperate with God. Much simplified by God's having already reached out to us - as per Biblical history.
Many will respond, "OK, but the Biblical worldview and God is now passe, disproven, or made irrelevant by modern science." to which I respond, "Not so, science was invented in the late Middle Ages by Christians, not by secular folks, as I indicate in my essay 'How Shall We Then Live?'" Science would never have happened if the Hebrews had not given us a world at home in time and space and particularity, and if the Christians had not then combined that worldview with the Greek talent for logical thinking.
The best to you, Earle