Being unemployed, I can't support this. Keeping an offer on hold blocks the company from making the offer to someone else who actively needs it. Maybe you meant

Being unemployed, I can't support this. Keeping an offer on hold blocks the company from making the offer to someone else who actively needs it. Maybe you meant something else, like a handshake agreement with a manager friend who works there that they'll try to make room for you if you ever want to join.