[GOPcapitalist]

There were 40,000 white Tenneseans in the U.S. Army during the Civil War -- hardly a negigible number.

Yeah, cause Tennessee was on the border and had divided loyalties, though still a minority of unionists. Go deeper south though. Check Alabama, Georgia, Texas, and the Carolinas. Check Mississippi and Arkansas. Check the heart of dixie - at most you will find a few thousand, if not a few dozen. You claimed 100,000 soldiers served yet that number simply isn't supportable.

[Grand Old Partisan]

Again, see Lincoln's Loyalists, by Richard N. Current. There were, for examle, 35 regiments of white soldoiers with southern designations (e.g. 1oth U.S. Tennessee Infantry, 4th U.S. Arkansas Infantry, 2nd Florida Cavalry) and tens of thousands in other regiments).