I want to make an analogy here that I think will help some regarding the issue of slavery in the Civil War.
Lincoln used slavery the same way Saddam Hussein, Iran, and Osama Bin Laden used the Palestinians as an issue. They could care less about Palestinians. Hussein wanted to be a pan-arab leader, Bin Laden wanted all Westerners out of the Middle East, and Iran wanted the Shah and the US out (Iranians don't even consider themselves arabs, but Persians, and they look down on arabs like the Palestinians).
My point is, even tho they have clear agendas, they use the Palestinians as a sore point, a POLITICAL sore point, just as Lincoln did with slaves. This is why abolitionists HATED Lincoln and saw him for what he was: a politician.
Lincoln's primary concern was keeping the union together. Slavery did not become an issue until 1863.
What a perfect, dead-on analogy.