This conversation is going downhill. If the OP wants to steal cuttings and has no qualms, even though it is illegal, let's not keep up this chit-chat.
No means no. We learn that while we are at our mother's knee.
Public parks allow public access but they do not belong to the public.
Our local botanical gardens (2) have plant sales regularly so people can purchase plants rather than steal them. It is the right thing to do. It is the honest thing to do.
I will leave y'all to finish this discussion.
