It's intellectual property but with the ethnic group instead of the individual as the unit of ownership and with a "human economy" framework where the point of the property right is not primarily to enable market transactions but to establish privileges (cultural appropriation discoursers would likely reject a notion that an ethnic group can collectively sell their culture and relinquish their claim on it by doing so, much as - per Fustel de Coulanges's "The Ancient City" - in the earliest Greek property rights a farmer could not sell the land their ancestors had owned and worked).