Exigency in "Lynch Law"

Wells-Barnett's exigency in "Lynch Law" is very clear at first glance: To point out the injustice of lynching and advocate for its eradication.  However, after discussing the article, her exigence appears to me to be much more complex.  Not only is Wells-Barnett pointing out the problems of lynching, but she is also pointing out the problems of America in general and the faults of the American people.  This is a huge and very effective part of her argument.  While her appeals to pathos and statistical evidence highlight the horrors and injustice that come along with lynching, the way she criticizes America implies that Americans are being hypocritical, damaging the economy, and disrespecting their country.
She writes, "our watchword has been 'the land of the free and the home of the brave. Brave men do not gather by thousands to torture and murder a single individual, so gagged and bound he cannot make even feeble resistance or defense."  She also includes a table of expenses that the US had to pay to countries such as China, Italy, and Great Britain for lynching and harming citizens of those countries.
 In addition, Wells-Barnett goes even further and implies that the American people, when condoning lynching, are savage.  She writes, "The cannibals of the South Sea Islands roast human beings alive to satisfy hunger.  The red Indian of the Wester plains tied his prisoner to the stake, tortured him, and danced in fiendish glee while his victim writhed in the flames.  His savage, untutored mind suggested no better way than that of wreaking vengeance upon those who had wronged him.  These people knew nothing about Christianity and did not profess to follow its teachings. . . "  In this passage, Wells-Barnett is not only comparing the American people to savages, but she is also accusing them of not being Christian, and even pagan in their behavior.
Thus, I believe Wells-Barnett has two very specific parts of her overall exigence--to portray the horrors of lynching, but also to make it clear that lynching is everyone's problem rather than just lynchers alone or legislators alone, and that everyone is to blame and should be ashamed.