It was the south that went to war over slavery. They stated so rather unambiguously. It was the north who went to war because the south had gone to war against them.
The north was growing more industrialized, while the south remained predominately agrarian. The government was pushing the south to “pay their fair share” to the federal government. The south said we can’t we don’t have it. That was the main bullet point. Slavery was a secondary point. The war was to keep the Union intact. Lincoln was not going to have the Union dissolve under him.
And Here you are. You keep saying that nobody on your side makes the false claim that the Union fought the war to end slavery, and here you yourself are insinuating this very thing.
You do no bring up "slavery" unless you are insinuating such a claim. It has no bearing on the issue unless you are trying to imply causality. And you are.
Actually the Yankees refused to leave Ft Sumpter, there is a right for states to leave the union. Therefore this was the War of Northern Aggression, they wanted to keep and dominate the South. Was slavery evil yes, but that doesn’t exclude the rights of succession for the states. I pray we have a peaceful divorce now rather than a bloody one later.