We are animals, we are not enlighted creatures different from all the others and touched from God, we just have higher IQ. In a primal situation the levels of agression on a individual dictated his chances of survival and procreation, and because of it humanity as a whole developed it. We never evoluted as animals past the beggining of society, we still the same, same instincts, same standards for finding mates, same reactions in life or death situations, and like you or not, violence and agression are a fundamental and indivisable part of every human being.
>I believe in peaceful anarchy, but not in our time
I don't believe in peaceful anarchy in any time, any system that needs only 1 (one) smartass to break the rules and take advantage of others, is a system bound to fail. Even if you build a "smartass genociding foundation", the bloodbath will enrage the common citizens, the ones that follow the unspoken agreements, and in a few time your system colapses.
>Part of me really wants to do it, bomb football stadiums and derail trains
And you don't do it because your rational mind or your lack of willpower and confidence tells you not to. But not all people are that much influenced by those things, that's why an anarchic society would never work. Hell, I am not even the most transgressive person around, I'm kinda of a cuck, but even still I have already slipped in agrary reform movements even tough I don't believe that shit just to pick up some land. In the end we are just mamals, and unlike bees and ants, mamals group in societies because it benefits then and their offspring as individuals, not because of the protection of the said society itself. When his safety and the safety of the colectivety are conflicting, their instincts are to preserve thenselves and their kids, and the same applies to humans, the only ones that don't follow those rules being the ones that have put their personal morals above their instincts.
>so what if we make everyone be rational
A human is born, it grows up, it acquires knowledge, and at some point puts rationality above their primal instincts, women never do constantly evoluting it's rationality, until the day it dies. Every human pass trough that cicle, every human will feel the need of breaking current norms, and so on. Unless you pick a bunch of old people, freeze their ages, and stop then from having kids, that kind of society is unachiveable by nature.