Art,
I messaged a teacher friend of mine with German ancestry your post and received back a slew of interesting facts.
The very first anti-slavery protests, even in New England, were led by German immigrants. German protestants were very much against the institution of slavery, it was an English (won't say British since Scots, Welsh, and Irlanders were victims of this in ancient history) were the main ones promoting slavery. If I were to win the lottery tomorrow I would devote my time to writing a history as to how the US Civil War was really a continuation of the War of Independence, the War of 1812, etc. The UK supported the Confederacy to try to overthrow the US Federal government, they weren't over that whole 1776 thing yet. As late as the 1900s the US War College (West Point) was war-gaming about the next "world war" which would be between the USA and the UK!
The civil war was a proxy war between the USA and the UK just as the Vietnam War was a proxy war between the USA and the USSR and China.
You're welcome. If I could only find funding to be a historian I think my book on this would be a great seller, I have not found anyone who has written something on this although MANY have cited that the UK both supported the CSA and that the US war colleges considered the UK to be the "enemy" up to and including during WW1 until the US sheeple were convinced to enter that war.
The UK was the only other "World Power" besides the USA up to and including 1916-1917. Given our history of hostility with the UK, it was only natural that the USA considered them to be the most natural adversary and wargamed, to use a modern term, against them appropriately.
Phillip McGregor (OFC)
"I am neither a fire arms nor a ballistics expert, but I was a combat infantry officer in the Great War, and I absolutely know that the bullet from an infantry rifle has to be able to shoot through things." General Douglas MacArthur