What was a characteristic of Native American slavery in New Mexico?

The characteristic of Native American slavery in New Mexico being a longstanding practice is significant as it reflects the historical context of the region prior to and during colonization. Native American slavery in this context often involved complex relationships shaped by warfare, economic exchange, and social structures within indigenous communities. The practice existed before European contact and continued throughout various periods of New Mexican history.

Colonial influences introduced new dynamics, but the roots of Native American slavery ran deep, often entailing the capture and integration of individuals from rival tribes. This practice was part of broader societal norms among some Indigenous groups and was intertwined with cultural practices.

The other options do not accurately reflect the historical realities. For instance, while some military factions or leaders may have criticized the practice, it was not uniformly seen as wrong at the time. The confusion of slavery with adoption could sometimes occur, but Native American systems of kinship and social integration were distinct and culturally specific. Lastly, President Lincoln's administration was primarily focused on issues related to the Civil War and not directly involved in regulating regional practices such as slavery in New Mexico, which was more a localized concern during the years preceding his presidency.