Is that your contention regarding what happened in 1860 in the Southern states? I would think that if the people of those states did not agree with the decision to have independence, they would have made their feelings known on the subject.
It looks to me like they did make their feelings known when they signed up to fight the invaders, like the Ukrainians are doing now.
Events, past and present, are regularly and deliberately distorted, often grossly, to manipulate the understanding of the population.
Yes, this manipulation was happening in 1860.
The trick of the elite is to deceive good people into serving the interests of the elite.
Note the word “deceive.”