How can i ignore people that is not worth my time?

Why do people ignore the reality of a time past as soon as there is no one left to say otherwise?

• Like the North vs. the South and the reasons for the war? Liberals seem to visualize it as Northerners being perfect gentlemen and ladies who stood up for black people and were willing to lay lives down for this reason alone. The reality is that most Northerners at the time could have cared less about black people and probably would by today's standard be just as uneducated and racist as anybody In the South was. If you look at New York's history, it's fairly clear that racism was alive and well during the time.

• Answer:

  The North might not have liked blacks but that doesn't change the fact that the Civil War wouldn't have been fought if the South didn't secede, and they would not have seceded if they didn't believe Lincoln wanted to end slavery