Does it mean I have the right to take a car and a cellphone from any nearby person that looks rich enough to afford another one? After all, I need it clearly more than he does, so forcefully taking it from him is completely justified. In fact, if he objects, I'm completely justified to call him a greedy pig - I gave him an opportunity to do a good deed, and he dares to object? Despicable.
Because when people give voluntarily, there's no state involved. People can and do give without any need for the state to intervene. When the state intervenes, it always takes. It can not give anything without forcefully taking it from somebody first.