sentences:  Some 7,000 enslaved people were freed by their masters, so at that point those free African Americans left the U.S. to escape racism and have more opportunities (mainly because they had lost all hope of achievement).In the 1830s, the movement became increasingly dominated by Southern slave owners, who did not want free blacks and saw sending them to Liberia as a solution.Slaves freed from slave ships were sent here instead of their countries of origin.