Rosaria Terpstra is a final grade in Architecture, Art, and Planning from Landshut
While the rump slave states are a a lot smaller group there is perhaps a worry that shifting against them would immediate more secession bids so it could last for a while.

No pal, but if you buy me a few rounds I would get pissed!
Now we have all of America in the present day (annexed Texas, Hawaii, Mexico and so forth.).
America chooses to imperialism during this time for economic advantages.