No, humanity has not become a slave to civilization, because civilization is a positive thing that makes our lives better. Civilization is a wy that people come together to help each other capitalize on the things they do best. We each do not need to know how to do everything, but it is easier when we all help each other.
Humans are social creatures, and as such, will always form some kind of governing system of society. Humans are not necessarily slaves to this civilization, as the civilization is what defines humanity as a whole. Each person has their own personality and interests, which combine with everyone elses' to form the broad definition of society.