I'm also for free beer for every citizen on Friday and Saturday nights. I'm for there being a heaven. I'm for everyone having free will, and no one doing anything wrong. I'm against bad stuff.
But, the important question facing us is not whether we are for or against perfect fantasies, utopias or dystopias. The most important question is this: When choosing from among a number of imperfect but likely realities, which do we choose? You insist on choosing utopia. I'm trying not to be distracted by utopia.
Frankly, I use your approach in day to day life. I don't worry about bad people. I just do what I think is right, and if I get screwed or taken advantage of because I did the right thing, then so be it. I'm comfortable with that. I'm just not sure that approach works, or even should work, with politics.