It really isn't. There's reasons that we've created laws and it's because the vast majority can't be expected to do the right thing just because it's the right thing and this isn't a one time thing, this is the entirety of history. I'm not "on the side of the men with guns" just for pointing out the obvious issue with the utopia, just as I'm not a neo-liberal capitalist for pointing out the inherent issues with the communist utopia or a dirty commie for pointing out the obvious issued with a capitalist utopia.

As it turns out, when you just talk about something and don't actually encounter the hardships of reality, all the ideas are amazing and fantastic lol. In an anarchic society you would be killed, enslaved, or raped. Human society hasn't come to the point yet where we could transition to such an idea without those problems.