If a man had one of his arms cut off but kept the other one, you'd still call him an amputee. Similarly, if your guns are taken away from you by force, you have been disarmed. There are different degrees to this - I would argue that people who live in blue states are generally more disarmed than people living in red states - but that doesn't change the fact that a disarmament has taken place.

Your analogy would be more like asking if a man who put his arm inside his shirt could be called an amputee.