If things ever came to that then the AI side isn't without their own potential options:

https://en.wikipedia.org/wiki/Drone_warfare

At least for a while, there will still be humans needed to manufacture those drones.

Violence can also be automated though, we'll see how we fare against autonomous police and drones

Who will build the drones? Who will provide the raw materials?

There's a lot of people without scruples around. Humanity on average doesnt really bother with ethics that much.

People with kids to feed, house and provide health insurance for I presume.

In the sense that violence is coercion they have a lot of purely electronic means of persuasion:

  update account
  set balance = 0
  where user = ‘steve1977’;

That‘s why I keep some physical gold.

>AI won’t beat physical violence in case of a revolution.

On a long enough time scale it beats everything.

Yup, guard robots won't be useful until they can beat 30+ people or do something to the first guy that the rest would have to run away. Same for AGI, it won't be called AGI (or conscious for that matter) until it can purposefully do malice.