There's also how Liberated Borg, which are the victims, are treated on Federation space. Always under suspicion of being monsters, it created a defacto underclass getting exploited. Is one of the themes that Picard S2 tried to tackle with "Seven deals with a human trafficking ring doing organ harvesting for Borg tech", but that show tried to tackle way too many things.
There's also how Liberated Borg, which are the victims, are treated on Federation space. Always under suspicion of being monsters, it created a defacto underclass getting exploited. Is one of the themes that Picard S2 tried to tackle with "Seven deals with a human trafficking ring doing organ harvesting for Borg tech", but that show tried to tackle way too many things.