The correct answer to this open question is the following.
Southerners claimed that abolitionist victories were creating a "wedge" in the Union. What they meant by this was that people from the South -who heavily supported slavey in their territories- thought that as abolitionists' ideas spread to the northern states, these somehow weakened the Union in that these ideas confronted their people through so much debate. For the southerners, this represented an advantage and creation distraction while the South gained time and maintained slavery in the large plantations, producing the kinds of crops that moved their economy.
Were they correct? Not at all but they had a point in that so much debate on the issue of slavery and the increasing idea of abolitionism distracted decision-makers in the northern states. Those were the years were more supporters of abolition made their moves. For instance, in Rochester, New York, Frederick Douglass led the newspaper "The North Star," an abolitionist publication that somehow exerted pressure in the public opinion.
B) Agree
Even though prejudice does not always lead to discrimination, it usually does.
Because it offers the historian an objective snapshot of the public sentiment of the time, which the cartoonist (should be) distilling for their readers, according to their feelings, for mass appeal. I say objective as it is usually very easy to decipher their subjective viewpoint according to the publication. The value of this is that it is tapping into how the masses 'feel' rather than how subjective facts can be built to form historical opinion. It becomes especially valuable prior to this century, when public sentiment is harder to garner as we were less technologically advanced.
A. Canned fruits were not part of The pre-colonial diet for Pacific Islanders
