You are incorrect. The legislature of the border state of Missouri adopted a secession ordinance and its populace split between the two sides. The border state of Kentucky officially declared neutrality while a rump government seceded and the population again split. A secession movement was underway in the border state of Maryland but the military invasion of the state and the arrest of pro-secession legislators by Lincoln preempted them from acting. The state nevertheless had units fighting in the armies of both sides.
Again I do not consider the educational potential the same from one college to another. Neither do authorities on this issue.
Given that you have neither established the educational potential of any college nor cited any authorities on the matter, what you personally "consider" to be the case is, at the present, irrelevant to the truth of this discussion.
None of those states were part of the CSA which was the Slaver Empire. Your history lesson was interesting but not at issue as none of the states left the Union. Since 100,000 from the CSA states fought for the Union by your logic those states were part of the Union still.
Opinion is what this discussion is about contrary to those who believe they can post a couple of quotations (or yards of them) and think they have proved something. I could post a quotation from God Almighty saying that everything I say is 100% true and you would not accept it anyway.