You didn't even say permissionless in your post. Ripple is a company you mean the XRPL. The XRPL is permissionless in every aspect. You can insert transaction without anyones permission. You can run a node without anyones permission. You can fork and create you own version without anyones permission. You can change code and create an amendment without anyone's permission. It needs 80% favorable votes for two weeks to become active but it doesn't need anyone's permission. There is no entity that can vote against it and prevent it.