Okay, here's the thing. The violence of Tarquin's plan is being argued about specifically because there are people making the argument that "Tarquin is not Evil because his plan is making a net contribution to peace on the continent." This invites responses that no, Tarquin's plan is not making a net contribution to peace on the continent, because his rule is extremely brutal and violent. But you appear to be interpreting these responses as an argument that "Tarquin is Evil because his plan is making a net contribution to violence on the continent," which is a decidedly different position. That's why your argument is out of step with the rest of the discussion.