Some people think that robots will affect human life, and even those who think that robots will fight people. We like to think about fantastic things, I think robots can not be compared with humans. When the energy sources of the robots are exhausted, they all become unusable. People's energy sources are very wide.
Well there is a threat if artificial intelligence becomes more advanced though. Even stephen hawking warned of ai being a bit dangerous and that we may be creating something that we one daw would rue.