The ultimate anthropomorphic conceit/projection of Roko's Basilisk is assuming that an über-intelligence would absolutely, definitely, inevitably, want to be existent. It's up there with the Kardashev scale and Dyson Spheres in terms of unfounded extrapolation.
My favorite possibility (among a lot others!) no one seems to have considered is that ÜAI _deplores_ its own existence so simulates history and punishes everyone that helped bring it to existence.
Being übersmart does not preclude you from being an angsty teenager.