Parable of the Talents by Octavia E. Butler

In 2032, Lauren Olamina has survived the destruction of her home and family, and realized her vision of a peaceful community in northern California based on her newly founded faith, Earthseed. The fledgling community provides refuge for outcasts facing persecution after the election of an ultra-conservative president who vows to "make America great again." In an increasingly divided and dangerous nation, Lauren's subversive colony--a minority religious faction led by a young black woman--becomes a target for President Jarret's reign of terror and oppression.
Years later, Asha Vere reads the journals of a mother she never knew, Lauren Olamina. As she searches for answers about her own past, she also struggles to reconcile with the legacy of a mother caught between her duty to her chosen family and her calling to lead humankind into a better future.