What did many West African slaves do rather than return to a life of slavery?

While West Africans made up the vast majority of the enslaved, the east coast of Africa, too, supplied slaves for the trade. In the New World, the institution of slavery assumed a new aspect when the mercantilist system demanded a permanent, identifiable, and plentiful labor supply.

monarchy doesn’t have to have the hereditary element. there have been elective monarchies in the past where you choose your king-for-life and when he dies elect someone else for the job.

what are the choices?