It didn't have to free all the slaves. That could come later just as it did.
Fight the war, win the war and free the slaves. Mission accomplished.
Not the purpose of the war. The EP wasn't issued until long after the start of the war, and only because the north feared intervention by Europe. We clearly agree on the evils of slavery, but this issue has been laid as a cause of the war. If so, the north would NEVER have tolerated slavery in Union states like Delaware, Maryland, Kentucky and Missouri. BTW ... my home state of Maryland remained in the Union only because a large number of elected officials were thrown in jail. When the Feds come to take your guns one day, will you truckle?
It also didn't create the slave rebellion that was it's sole purpose.