If I construct a gate that keeps out cows, but allows dogs through, and then I scatter bacon all over my yard, why would I be surprised to find dogs in my yard?
When you construct a political system, why are you surprised to find politicians occupying it?
The system actively selects for power-hungry people. Are all power-hungry people evil? Maybe not, but more of them are evil than among the general population. And dangling a system that gives power right in front of their faces makes it inevitable that they will accept your offer and rule over you.
The cows are not interested in breaching the gate, and are not drawn by the bacon. You have selected for dogs.
I do not consent.