Final answer:
The single decision that entailed a magnitude of sacrifice was the decision made by enslaved Africans to endure the transatlantic slave trade.
Step-by-step explanation:
The single decision that Wilkerson could be referring to is the decision made by enslaved Africans to endure the treacherous journey across the Atlantic during the transatlantic slave trade. This decision entailed an immense sacrifice as enslaved Africans were forcibly taken from their homes, families, and countries, enduring unimaginable hardships and suffering. Their sacrifice not only affected their own families and lineages, but it also had far-reaching consequences on the history of countries involved in the slave trade and their descendants to the present day.
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