hopefully MC will continue their relationship with the orc pirate through trading partnership. the orcs can bring lots of goods that aren't available in MC's island.
They can't be picky. Having war fleet is must have for maritime nation. Even more so if MC decide to go against his country & declare independency. There's no way the kingdom will approve non-human species as citizen since the declared them sub-human & to be kill on sight. At best, they'll be slaved for resources on that island.