It would have been nice to have at least one black man among the union soldiers. Just saying, they did do their fair share of the fighting and the dying to preserve the union. A line of exclusively white faces might be more historically accurate when it comes to showing that brigades were segregated and that whites and blacks just about never fought shoulder-to-shoulder, but omitting them entirely kind of helps us forget they were even there.
Robert E Lee wasn't the cause of the war. Granted it would have been better if he had stayed loyal to the Union and the war would have ended a lot quicker.
Really Jefferson Davis and Alexander Stephans are to blame, along with all the supporters of the succession. Also the South Carolina regiment that fired the first shots in the first place. However I don't wish anyone to go to hell(heck I don't believe in hell).
Don't be so ignorant. Grant and Lee had ENOURMOUS respect for each other. Lee, in fact, did not want to secede, but recognized that it would be hypocritical to keep them from doing so at gunpoint. In fact, you can thank Lee for calling off a guerrilla war that would have caused devastation for years or decades after the war.
The problem with people like you is that you think really life is like a hollywood movie. Everything is black and white to you. Guess what, history is written by the victor. But if you go look for yourself, you might find there are always heroes and villains on both sides of any major conflict.