On the topic of utopia, before creation, must come destruction.
Before the making of the ideal world where no violence exists (Jikanu's description) there must be either 1) the slaughter of people who hold ideas not compatible with the new utopia or 2) the destruction of "things" to change these peoples' ideas.
You can't get to decent without being indecent first, and you can't get to being sane without being insane first. Because if you don't perform evil, how will you know what's good?
So, somewhere along the road to utopia, there has to be a global domination of thought or else nothing will ever be accomplished. It's unavoidable. You can't have a perfect world without having everyone think along the same path (not saying that everybody thinks the same, just nothing that contradicts the utopia's standards).
/slightly off topic.
>edit
I'm slow at posting LOL.
Again, to make the world completely fair, it requires a massive purge. :D Everybody thinks and wants different things, and that just can't be allowed in a fair world. So, kill them all~ Kill until everybody obeys or until only the ones left are the ones who agree on the same things. Sounds kind of strange, but I really believe that peace is just not going to make it to the perfect utopia everybody dreams of. No matter how much we wish.
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Er, not saying peace is bad LOL. Just saying it's not the path to take if it's perfect utopia everybody wants. xD