Jeebus but you are slow!
It wasn’t “all about slavery” - except to the southern slavers who started a war over it.
There is no need for you to introduce personal rancor. Remember, I have supported (in my post 40) one of your core contentions:
"If what you say is true - and you make a fair case - then we can dismiss the notion that the north was fighting for some high moral cause like “freeing the slaves.” "
The Union was holding slaves in Fort Sumter? Who knew?