I disagree on both counts.

On the first, non-human pets rebelling is seen every time an abused animal bites their owner.

On the second, the hypothetical required by the scenario is that AI makes all human labour redundant: that includes all security forces, but it also means the AI moving around the security bots and observing through sensors is at least as competent as every human political campaign strategist, every human propagandist, every human general, every human negotiator, and every human surveillance worker.

This is because if some AI isn't all those things and more, humans can still get employed to work those jobs.