The post you quoted seems to me to be a straightforward recitation of some facts. Do you dispute the accuracy of these purported facts?Yam, there's no point arguing with such people. This thread was posted by Non Sequitur specifically to provoke these same old arguments, which haven't really changed since the days of William Lloyd Garrison and Wendell Phillips.
Some people apparently derive great pleasure in striking the "I Hate Slavery More Than You Do" pose, and then denouncing as "racist" anyone who dares dispute their moral superiority. As harmful and divisive as such posturing was 140 years ago, it at least had some practical relevance back then, whereas today it's just tedious and foolish.
There is no fact you can cite that won't provoke from these latter-day Garrisons a "but what about ...?" They will accept no analogy or comparison that would tend to exculpate the South or indict the North. Offering any argument which does not conclude that Confederates were worse than Nazis will cause these people to scorn you as a simpleton and a bigot.
It's as pointless as arguing with Rosie O'Donnell or Alec Baldwin.
good post
Unfortunately, you are right.