Actually if you do your research you'll realize that 1) XRP is decentralized and will actually be more decentralized than bitcoin in a year or two and 2) Ripple cannot issue anymore XRP. That supply is fixed and capped. They do not control the ledger and therefore cannot mint any new coins -- so both of the reasons you dislike it have already been proven untrue. Anything else you dislike about it?
RE: !!! IS RIPPLE (XRP) CENTRALIZED? CAN IT BE FROZEN !!! Real answers from Ripple Labs