What have the Abolitionists done, what have they given, for the Negro race?

Under the master’s care, the miserable black savage has been fed, clothed, instructed in useful arts, and made an important contributor to the business and enjoyments of the world. What have the Abolitionists done, what have they given, for the Negro race? They use the slave for the purposes of self-glorification only, indifferent about his present or future condition. They are ambitious to bring about a great social revolution—what its effects may be they do not care to inquire.
~ William J. Grayson (1856)